Drinks for diabetics: a complete guide to the best drinks for diabetes
Drinks can make a significant contribution to daily sugar and carbohydrate intake, particularly because they are often consumed quickly and may be less filling than solid foods. For people with diabetes, choosing drinks carefully can therefore be an important part of managing blood glucose while maintaining good hydration.
Water is usually the best everyday choice, but it is not the only option. Unsweetened tea and coffee, milk, suitable plant-based alternatives and some low-sugar or sugar-free drinks can also fit into a balanced diabetes-friendly diet. Drinks such as fruit juice, smoothies and sweetened beverages require more attention to carbohydrate content, ingredients and portion size.
The best drinks for diabetics are generally those that support hydration while providing little or no added sugar and an appropriate amount of carbohydrate. Individual needs can vary according to factors such as medication, activity, overall diet and other health conditions, so there is no single drink or drinking pattern that is right for everyone.
This article provides general information and should not replace personalised advice from your doctor, diabetes specialist or registered dietitian.
Explore our diabetes food guides
Water is usually the best everyday drink for people with diabetes, but many other low-sugar options can also fit into a balanced diet.
What are the best drinks for diabetics?
For most people with diabetes, the best everyday drinks are those that support hydration without adding substantial amounts of sugar or carbohydrate. Water is the simplest choice because it contains no carbohydrate, sugar or calories, but unsweetened tea and coffee, milk and suitable plant-based drinks can also contribute to daily fluid intake.
The best choice depends partly on what the drink provides. Milk, for example, contains carbohydrate but also provides protein and important nutrients, while a sugary soft drink may provide a substantial amount of rapidly absorbed carbohydrate with little nutritional value. Fruit juice and smoothies can provide nutrients but may also contain significant amounts of carbohydrate, particularly in larger portions.
Rather than looking for one perfect drink, consider how often you consume it, its carbohydrate and added sugar content, portion size and whether it provides useful nutrition. Water should usually form the foundation of everyday hydration, with other drinks chosen according to individual needs and preferences.
Drinks for diabetics at a glance
| Drink | General suitability | What to consider |
|---|---|---|
| Water | Best everyday choice | Provides hydration without sugar, carbohydrate or calories |
| Sparkling water | Good everyday choice | Choose plain or unsweetened varieties |
| Tea | Generally suitable | Choose unsweetened tea or limit added sugar |
| Coffee | Generally suitable | Watch added sugar, syrups, cream and sweetened coffee drinks |
| Milk | Can fit regularly | Provides protein and calcium but also contains natural carbohydrate |
| Plant-based drinks | Depends on the product | Compare carbohydrate, added sugar, protein and fortification |
| Fruit juice | Limit portions | Contains naturally occurring sugars and much less fibre than whole fruit |
| Smoothies | Depends on ingredients and portion | Carbohydrate can increase quickly with fruit, juice and sweetened ingredients |
| Sugar-free drinks | Lower-sugar alternative | Can replace sugary drinks but do not need to replace water |
| Sugary soft drinks | Best limited | Can provide large amounts of rapidly absorbed carbohydrate |
| Alcohol | Requires individual consideration | Effects depend on the drink, amount, medication and risk of hypoglycaemia |
No single drink is suitable for every person or every situation. Water should usually provide the foundation for everyday hydration, while other drinks can be included according to their ingredients, nutritional value, portion size and individual needs. The following sections explain why drink choices matter and how to compare different beverages when you have diabetes.
Why drink choices matter for people with diabetes
Drinks can affect blood glucose differently depending on their carbohydrate content, portion size and how quickly they are consumed. Unlike many solid foods, sugary drinks can provide substantial amounts of carbohydrate without contributing much fibre or fullness, making it easy to consume a large amount in a short time.
Regular soft drinks, energy drinks, sweetened coffees, milkshakes and large portions of fruit juice can all provide significant amounts of sugar or carbohydrate. Choosing lower-sugar alternatives more often can reduce this contribution while still allowing a wide variety of drinks within a diabetes-friendly diet.
Not every drink containing carbohydrate needs to be avoided. Tea for diabetics, coffee for diabetics and water contain little or no carbohydrate when unsweetened, while drinks such as milk for diabetics provide carbohydrate alongside useful nutrients. Understanding these differences is more helpful than judging drinks simply by whether they contain sugar.
Hydration is particularly important when blood glucose is high. Elevated blood glucose can increase urination and fluid loss, which may increase the risk of dehydration. Drinking regularly throughout the day helps replace fluids and supports normal body functions.
Few drinks need to be classified as completely good or bad. What matters is the type of drink, how much and how often you consume it, and how it fits into your overall diet and individual diabetes management. The next section looks at the practical features that can help you identify a diabetes-friendly drink.
What makes a drink diabetes friendly?
A diabetes-friendly drink is best judged by its carbohydrate content, added sugars, nutritional value, portion size and how it fits into the overall diet. Water is the simplest everyday choice, but many other drinks can also be suitable when these factors are considered.
Drinks do not need to contain zero carbohydrate to fit into a diabetes-friendly diet. Milk, for example, contains natural carbohydrate but also provides protein, calcium and other nutrients. The more useful question is what the drink provides overall and how its carbohydrate content fits into your individual needs.
When comparing drinks, consider the following:
- Carbohydrate content: Drinks containing substantial amounts of carbohydrate may have a greater effect on blood glucose than lower-carbohydrate alternatives.
- Added sugars: Sugar, syrups, honey and other added sugars can significantly increase the carbohydrate content of a drink.
- Portion size: Even drinks such as milk for diabetics, fruit juice for diabetics and smoothies for diabetics can provide substantial amounts of carbohydrate when consumed in large portions.
- Nutritional value: Some drinks provide useful nutrients such as protein, calcium, vitamins or minerals, while others provide little beyond sugar and calories.
- Hydration: Water and other low-sugar drinks can contribute to daily fluid intake without unnecessarily increasing sugar intake.
Claims such as “natural”, “organic”, “no added sugar” or “contains fruit” do not necessarily mean that a drink is low in carbohydrate or suitable for unlimited consumption. A drink with no added sugar can still contain naturally occurring sugars, while some products marketed as healthier alternatives may provide substantial carbohydrate per bottle or serving.
Check the nutrition label, paying attention to total carbohydrate, sugars and serving size, and consider the ingredients and nutritional value of the drink as a whole. The next section looks at drinks that can commonly be included in a diabetes-friendly diet.
Healthy drinks to include in a diabetes-friendly diet
Many drinks can fit into a diabetes-friendly diet. Water should usually be the main drink for everyday hydration, while unsweetened tea and coffee, milk and suitable plant-based drinks can provide variety. The most appropriate choices depend on their carbohydrate content, added sugars, nutritional value and portion size.
The drinks below are practical options for many people with diabetes. They do not all have the same nutritional profile, so each should be considered according to what it provides and how it fits into the wider diet.
Water
Water is the best everyday drink for most people with diabetes. It contains no sugar, carbohydrate or calories and is essential for hydration, temperature regulation and many other normal body functions.
People with diabetes may need to pay particular attention to hydration when blood glucose is high because increased urination can lead to greater fluid loss. Individual fluid needs vary, but making water the default everyday drink is a simple way to maintain hydration without adding carbohydrate or sugar.
Sparkling and flavoured water
Plain sparkling water can provide the same hydration as still water and is a useful alternative for people who prefer a fizzy drink. Unsweetened varieties contain little or no carbohydrate and can add variety without the sugar found in regular soft drinks.
Flavoured waters vary considerably. Some contain added sugar or fruit juice concentrates, while others use low-calorie sweeteners or contain no sweeteners at all. Check the ingredients and nutrition label rather than assuming that every flavoured water is a low-sugar choice.
Tea for diabetics
Unsweetened black, green and oolong tea contain very little or no carbohydrate and can contribute to daily fluid intake. Many unsweetened herbal teas can also be suitable, although ingredients vary between products.
Adding sugar, honey or sweetened flavourings changes the carbohydrate content, while milk contributes a smaller amount of natural carbohydrate. If you regularly sweeten tea, reducing the amount or choosing a suitable alternative can help lower added sugar intake.
See tea for diabetics for more detailed guidance on black tea, green tea, herbal tea, additions and everyday tea choices.
Coffee for diabetics
Plain coffee contains very little carbohydrate and can fit into a diabetes-friendly diet. Filtered coffee, espresso and instant coffee can all be suitable, with the additions often making a greater nutritional difference than the coffee itself.
Sugar, flavoured syrups, whipped cream and large amounts of sweetened milk can substantially increase the carbohydrate and calorie content of coffee-based drinks. Choosing simpler preparations more often can make coffee easier to include.
See coffee for diabetics for more detailed guidance on different types of coffee, milk, sweeteners and other additions.
Milk for diabetics
Milk provides protein, calcium, vitamin B12 and other nutrients, but it also contains lactose, a naturally occurring sugar that contributes carbohydrate. It should therefore be considered differently from drinks such as water or unsweetened tea.
Milk can fit into a balanced diabetes-friendly diet in appropriate portions. Different types vary in fat and calorie content, while flavoured milks may contain added sugar.
See milk for diabetics for a detailed comparison of different types of milk, their carbohydrate content, nutritional profile and suitable portions.
Plant-based drinks
Plant-based drinks such as soya, almond and oat drinks can be useful alternatives to dairy milk, but their nutritional profiles vary considerably. Some provide useful amounts of protein and are fortified with calcium and vitamins, while others contain very little protein.
Carbohydrate and added sugar also vary between products, so compare nutrition labels rather than treating all plant-based drinks as equivalent. Unsweetened options can reduce added sugar, while fortified products may provide a nutritional profile better suited to replacing dairy milk.
Coconut water
Coconut water contains naturally occurring carbohydrate and sugar, so it should not be treated as equivalent to plain water. The amount of carbohydrate can also vary between products, particularly when other ingredients or added sugars are included.
Coconut water can fit into some diabetes-friendly diets in an appropriate portion, but it is not necessary for hydration and does not have a special role in controlling blood glucose. Check the nutrition label and consider its carbohydrate content alongside the rest of your diet.
Water remains the simplest choice for everyday hydration, but there is no need to drink water exclusively. Unsweetened tea and coffee, milk, suitable plant-based drinks and other low-sugar options can all contribute variety when chosen according to their ingredients and nutritional profile. The next section looks specifically at fruit juice and how it differs from eating whole fruit.
Can diabetics drink fruit juice?
Fruit juice contains vitamins and minerals from fruit, but nutritionally it is different from eating whole fruit. Juicing removes much of the fibre while retaining the naturally occurring sugars, so juice can provide a substantial amount of carbohydrate in a relatively small volume.
This does not mean people with diabetes must avoid fruit juice completely. The main considerations are the amount consumed, its total carbohydrate content and how it fits into the wider diet. Even 100% fruit juice without added sugar can affect blood glucose because the natural sugars from the fruit remain.
Whole fruit is generally the better everyday choice because it retains its fibre, requires chewing and is usually more filling. Juice is also easy to drink quickly, and a glass may contain the juice from several pieces of fruit. If you choose fruit juice, keeping the portion modest rather than using it as your main source of hydration is a more practical approach.
Check packaged juices for added sugars and consider the serving size as well as the total carbohydrate shown on the nutrition label. Terms such as “100% fruit”, “pure juice” and “no added sugar” do not mean that the drink contains no naturally occurring sugar or carbohydrate.
Fruit juice also has a specific role in treating hypoglycaemia for some people who use insulin or medicines that can cause low blood glucose. In that situation, rapidly absorbed carbohydrate is intentional and should be used according to the person’s individual diabetes treatment guidance. This is different from drinking fruit juice routinely for hydration.
Different juices vary in their carbohydrate content and nutritional profile. See orange juice for diabetics and cranberry juice for diabetics for more detailed guidance on individual types of juice.
Fruit juice can therefore fit into a diabetes-friendly diet, but it should not be treated as nutritionally equivalent to whole fruit or water. For everyday hydration, water and other low-sugar drinks are generally more suitable. The next section looks at smoothies, where the ingredients and portion size can make an even greater difference.
Are smoothies good for diabetics?
Smoothies can fit into a diabetes-friendly diet, but their suitability depends heavily on the ingredients and portion size. A smoothie made with whole fruit, vegetables, plain yoghurt or unsweetened milk can have a very different nutritional profile from one containing fruit juice, sweetened yoghurt, syrups, honey or ice cream.
Fruit-based smoothies can contain a substantial amount of carbohydrate, particularly when several portions of fruit are blended into one drink. Shop-bought smoothies may also come in large bottles or servings, making it easy to consume more carbohydrate than expected.
Blending retains more of the whole fruit than juicing, including much of its fibre, but smoothies are still usually consumed more quickly than intact fruit and require less chewing. Whole fruit is therefore generally the better everyday choice rather than treating smoothies as a direct nutritional equivalent.
If you make smoothies at home, consider the balance of ingredients as well as the amount of fruit. Plain yoghurt, unsweetened milk or a suitable plant-based drink can form the base, while vegetables, berries or a modest portion of other fruit can add flavour and nutrients. Nuts, seeds or oats can also be included where appropriate, although they add energy and change the overall nutritional profile.
For packaged smoothies, check the serving size, total carbohydrate and sugars on the nutrition label and look at the ingredients for fruit juice, concentrates and added sugars. Homemade versions can make portion size and ingredients easier to control, but they still need to be considered within the wider diet.
Smoothies do not need to be classified as either good or bad for diabetes. Ingredients, total carbohydrate and portion size are more useful considerations. See smoothies for diabetics for more detailed guidance on ingredients and practical combinations. The next section looks at sugar-free and diet drinks.
Are sugar-free and diet drinks suitable for diabetics?
Sugar-free and diet drinks can be useful alternatives to sugar-sweetened soft drinks because they generally contain little or no sugar and substantially less carbohydrate. For people who regularly drink sugary beverages, switching to a sugar-free version can reduce sugar and carbohydrate intake.
These drinks commonly use low-calorie or no-calorie sweeteners instead of sugar. They therefore usually have less direct effect on blood glucose than equivalent sugar-sweetened drinks, although ingredients and nutritional values vary between products.
Sugar-free does not necessarily mean that a drink provides nutritional benefits. Water remains the simplest everyday choice for hydration, while drinks such as milk can provide useful nutrients alongside their carbohydrate content.
Sugar-free drinks do not need to be avoided simply because they contain sweeteners, but neither do they need to become the main source of daily fluid. They can be one option within a varied drinking pattern, particularly when they help replace beverages containing substantial amounts of added sugar.
Check the nutrition label because terms such as “low sugar”, “reduced sugar” and “sugar-free” describe different products, and some drinks may still contain carbohydrate from other ingredients. This can be particularly relevant with flavoured milk drinks, speciality beverages and products containing fruit.
See sugar-free drinks for diabetics for more detailed guidance on different types of drinks and sweeteners. For a broader comparison of sweetener options, see sweeteners for diabetics. The next section looks at drinks that are generally better consumed less often or in smaller amounts.
What drinks should diabetics avoid or limit?
People with diabetes do not usually need to divide drinks into rigid lists of permitted and forbidden choices. However, drinks containing substantial amounts of added sugar or rapidly absorbed carbohydrate are generally better consumed less often or in smaller portions.
Regular sugary soft drinks, energy drinks, sweetened coffee drinks and milkshakes can provide large amounts of carbohydrate without contributing much fibre or fullness. Other drinks, including sports drinks and alcohol, require different considerations depending on why they are consumed and individual circumstances.
Sugary soft drinks
Regular fizzy drinks, colas, lemonades and other sugar-sweetened soft drinks can contain substantial amounts of rapidly absorbed carbohydrate. They generally provide little nutritional value alongside their sugar content, making water and other low-sugar drinks better choices for everyday hydration.
Sugar-free alternatives can reduce sugar and carbohydrate intake when replacing regular soft drinks. See sugar-free drinks for diabetics for more detailed guidance on where these alternatives can fit into a diabetes-friendly diet.
Energy drinks
Many energy drinks contain large amounts of added sugar alongside caffeine and other stimulant ingredients. Sugar-free versions remove much of the sugar concern but may still contain substantial amounts of caffeine, so the nutrition information and caffeine content both need to be considered.
Energy drinks vary considerably in their sugar, carbohydrate and caffeine content. Check individual products carefully and consider whether they are necessary rather than treating them as routine drinks.
Sports and electrolyte drinks
Sports drinks are generally designed to provide fluid, carbohydrate and electrolytes during prolonged or demanding physical activity. For routine daily hydration or shorter periods of moderate activity, they may provide carbohydrate that is not needed.
Electrolyte drinks include both sugar-containing and sugar-free products, and their usefulness depends on factors such as exercise duration, fluid losses and individual medical needs. For ordinary everyday hydration, water is usually sufficient for most people.
Sweetened coffee drinks
Flavoured lattes, frappés and other speciality coffee drinks can contain substantial amounts of added sugar from syrups, sweetened milk, whipped cream and toppings. Larger café servings can increase both carbohydrate and calorie intake considerably.
Coffee itself contains very little carbohydrate, so the additions can make a significant difference. See coffee for diabetics for more detailed guidance on coffee, milk, sweeteners and other additions.
Milkshakes and sweetened dairy drinks
Plain milk provides protein, calcium and other nutrients alongside its natural carbohydrate. Milkshakes and many flavoured milk drinks can contain considerably more carbohydrate because of added sugar, syrups, ice cream or other sweet ingredients.
The type of milk and ingredients used can substantially change the nutritional profile of these drinks. See milk for diabetics for more detailed guidance on milk choices, carbohydrate content and suitable portions.
Alcoholic drinks
Alcohol requires separate consideration because its effects depend on the type and amount consumed, whether it is consumed with food, medication use and individual health circumstances. Some alcoholic drinks also contain substantial amounts of carbohydrate or added sugar.
Alcohol can also increase the risk of hypoglycaemia for some people who use insulin or medicines that can cause low blood glucose. See alcohol and diabetes for more detailed guidance on blood glucose, medication and practical safety considerations.
Higher-sugar drinks do not necessarily need to be excluded completely, but they are generally better treated as occasional choices rather than everyday sources of hydration. Choosing water and other low-sugar drinks more often can reduce added sugar and carbohydrate intake without creating unnecessary restrictions.
Alcohol requires additional considerations beyond its carbohydrate content because it can interact with diabetes management and medication. The next section looks at alcohol in more detail.
Can diabetics drink alcohol?
Some people with diabetes can drink alcohol, but it is not suitable for everyone. Whether alcohol can be included safely depends on factors such as diabetes medication, blood glucose management, other health conditions, the type of alcoholic drink and the amount consumed.
Alcohol can increase the risk of hypoglycaemia in people who use insulin or certain medicines that can cause low blood glucose. This risk can continue for several hours after drinking because alcohol can affect the liver’s ability to release glucose. Drinking without food may increase the risk for some people.
Alcoholic drinks also vary considerably in carbohydrate and sugar content. Beer, cider, liqueurs, cocktails and some wines may provide more carbohydrate than other choices, while mixers can add substantial amounts of sugar. Carbohydrate content alone, however, does not determine whether an alcoholic drink is suitable.
If you choose to drink alcohol, avoid binge drinking, stay hydrated and consider whether the drink contains added sugar or carbohydrate. If you use insulin or medicines that can cause hypoglycaemia, follow the advice provided by your diabetes healthcare team about drinking, food and blood glucose monitoring.
Alcohol should not be used as a way to lower blood glucose and is not necessary as part of a healthy diet. Some people may be advised not to drink because of medication, pregnancy, liver disease or other individual circumstances.
See alcohol and diabetes for more detailed guidance on different alcoholic drinks, blood glucose, hypoglycaemia risk and practical safety considerations. The next section looks at daily fluid intake and how hydration needs can vary between individuals.
How much should diabetics drink each day?
Staying well hydrated is important for people with diabetes, but there is no single amount of fluid that is appropriate for everyone. Individual requirements vary according to factors such as age, body size, physical activity, climate, diet and overall health.
Water should usually provide the foundation of daily fluid intake, although unsweetened tea and coffee, milk and other suitable drinks can also contribute. Drinking regularly throughout the day can be more practical than relying on thirst alone, particularly during hot weather or prolonged physical activity.
Some people need individual advice about fluid intake because of kidney disease, heart disease or other medical conditions. In these circumstances, general hydration recommendations should not replace guidance from the healthcare team.
Hydration deserves particular attention when blood glucose is high. Elevated blood glucose can increase urination and fluid loss, which may contribute to dehydration. Persistent excessive thirst or unusually frequent urination can also be associated with high blood glucose and should not simply be treated by drinking increasingly large amounts of fluid.
Rather than aiming for an arbitrary number of glasses each day, focus on drinking regularly and making water and other low-sugar drinks your usual choices. Fluid requirements may increase during hot weather, exercise or other situations involving greater fluid loss.
If you have been given a specific fluid target or restriction by a healthcare professional, follow that individual advice. The next section looks at how nutrition labels, serving sizes and ingredients can help you choose suitable everyday drinks.
How to choose a diabetes-friendly drink
Choosing a diabetes-friendly drink does not require memorising lists of good and bad beverages. Nutrition labels, ingredients and portion sizes can help you compare products and understand how a drink fits into your overall diet.
Total carbohydrate is particularly important because carbohydrate can affect blood glucose. Sugar content is also useful, especially when comparing sweetened and unsweetened versions of similar drinks. Remember that a product labelled “no added sugar” can still contain naturally occurring sugars and carbohydrate.
Serving size also matters. Nutrition information may refer to only part of a bottle or carton, so check how much you are actually likely to drink. A beverage that appears relatively low in carbohydrate per serving may provide considerably more when the entire container is consumed.
Choose water most often
Water provides hydration without sugar, carbohydrate or calories, making it the simplest everyday drink for most people with diabetes. Building most of your daily fluid intake around water also leaves room for other drinks that provide carbohydrate or calories.
Still and sparkling water can both contribute to hydration. If plain water is difficult to enjoy regularly, unsweetened sparkling water or water flavoured with ingredients such as lemon, lime, cucumber or mint can provide variety without substantial amounts of added sugar.
Read the nutrition label
Nutrition labels allow you to compare the carbohydrate, sugars, calories and other nutrients in similar drinks. This can be particularly useful for flavoured waters, plant-based drinks, milk drinks, juices and other packaged beverages where nutritional values vary between products.
Do not rely only on claims on the front of the package. Terms such as “natural”, “light”, “reduced sugar” and “no added sugar” do not tell you the drink’s complete nutritional profile, so check the nutrition information and ingredients as well.
Check the serving size
The serving used on a nutrition label may be smaller than the bottle, carton or cup you actually consume. If a container provides more than one serving, drinking the whole container increases the carbohydrate, sugar and calorie intake accordingly.
Portion size is particularly important for drinks such as fruit juice for diabetics and smoothies for diabetics, where a relatively small volume can contain a meaningful amount of carbohydrate. Check both the stated serving and the amount you actually drink.
Look at total carbohydrate as well as sugar
Sugar is only one part of the nutrition information relevant to diabetes. Total carbohydrate provides a broader indication of the carbohydrate in the drink that may affect blood glucose.
This is particularly useful when comparing drinks containing milk, fruit or other carbohydrate-containing ingredients. See milk for diabetics, fruit juice for diabetics and smoothies for diabetics for more detailed guidance on these drink categories.
Watch for added sugars
Added sugars can appear under different names, including sugar, glucose syrup, fructose syrup, honey and other syrups. Sweetened coffees, soft drinks, flavoured milk drinks and some fruit-based beverages can contain substantial amounts.
Choosing products with less added sugar can reduce overall sugar intake. If sweetness is important to you, sugar-free drinks for diabetics and the broader sweeteners for diabetics guide explain the alternatives in more detail.
Choose unsweetened options where possible
Unsweetened versions of tea, coffee and plant-based drinks can reduce added sugar without requiring you to avoid these drinks. However, unsweetened does not necessarily mean carbohydrate-free because some ingredients naturally contain carbohydrate.
See tea for diabetics and coffee for diabetics for more detailed guidance on unsweetened everyday drinks and how additions such as milk and sweeteners affect their nutritional profile. For dairy and milk alternatives, see milk for diabetics.
Think about how the drink fits into your day
A drink should be considered within the context of your overall food and drink intake rather than judged in isolation. How often you consume it, the portion size, its carbohydrate content and what else you eat or drink during the day all matter.
There is no need for every drink to be nutritionally perfect. Making water and other low-sugar options your usual choices provides room for a wider variety of drinks while keeping overall hydration, carbohydrate intake and nutritional balance in perspective.
Choosing drinks becomes easier when you focus on a few practical checks: what the drink contains, how much carbohydrate and added sugar it provides, the serving size and whether it contributes useful nutrition. These factors are generally more informative than marketing claims on the front of the package.
Water can remain the foundation of everyday hydration without being the only drink you consume. The frequently asked questions below address some of the most common concerns about water, coffee, milk, fruit juice, coconut water, sugar-free drinks and alcohol.
Frequently asked questions about drinks for diabetics
People with diabetes often have practical questions about everyday drinks, from water and coffee to fruit juice, smoothies and alcohol. The suitability of a drink depends on factors such as its carbohydrate and added sugar content, portion size, ingredients and individual health circumstances.
The answers below summarise the main considerations when choosing drinks as part of a balanced diabetes-friendly diet.
What is the best drink for someone with diabetes?
Water is usually the best everyday drink for people with diabetes because it provides hydration without sugar, carbohydrate or calories. Still or sparkling water can both be suitable, provided flavoured varieties do not contain substantial amounts of added sugar.
Water does not need to be the only drink you consume. Unsweetened tea for diabetics, coffee for diabetics, milk for diabetics and suitable plant-based drinks can also contribute to daily fluid intake and provide variety.
Can people with diabetes drink fruit juice?
Yes, but fruit juice contains naturally occurring sugars and can provide a substantial amount of carbohydrate in a relatively small volume. Much of the fibre present in whole fruit is removed during juicing, so whole fruit is generally the better everyday choice.
If you drink juice, consider the portion and total carbohydrate rather than relying only on claims such as “100% fruit” or “no added sugar”. See fruit juice for diabetics, orange juice for diabetics and cranberry juice for diabetics for more detailed guidance.
Can people with diabetes drink coconut water?
Yes, coconut water can fit into some diabetes-friendly diets, but it naturally contains sugar and carbohydrate and should not be treated as equivalent to plain water. The amount can also vary between products.
Check the nutrition label, particularly for flavoured products or those containing added sugar, and consider the portion within your overall carbohydrate intake. Water remains the simpler choice for routine hydration.
Are sugar-free drinks better than regular soft drinks?
Sugar-free drinks generally contain much less sugar and carbohydrate than regular sugar-sweetened soft drinks. Replacing a regular sugary drink with a sugar-free version can therefore reduce sugar and carbohydrate intake.
They do not need to replace water as your main everyday drink, but they can provide an alternative when you want something sweet without the sugar found in regular soft drinks. See sugar-free drinks for diabetics and sweeteners for diabetics for more detailed guidance.
Is coffee safe for people with diabetes?
Plain coffee contains very little carbohydrate and can generally fit into a diabetes-friendly diet. The nutritional profile can change considerably when sugar, flavoured syrups, whipped cream or large amounts of sweetened milk are added.
Caffeine tolerance varies, and people who have been advised to limit caffeine for another health reason should follow their individual medical advice. See coffee for diabetics for more detailed guidance on different coffee choices and additions.
Can people with diabetes drink milk?
Yes. Milk provides protein, calcium and other important nutrients, although it also contains natural carbohydrate in the form of lactose. It therefore needs to be considered differently from carbohydrate-free drinks such as water.
Different types of milk vary in fat, calories and other nutrients, while flavoured varieties may contain added sugar. See milk for diabetics for a detailed comparison of milk choices and suitable portions.
How much water should a person with diabetes drink?
There is no single amount of water that is appropriate for everyone. Fluid requirements vary according to age, body size, physical activity, climate, diet and overall health, while some medical conditions require individual fluid recommendations.
Drinking regularly throughout the day and making water your main source of hydration is a practical approach for most people. If you have been given a specific fluid target or restriction by a healthcare professional, follow that individual advice.
Should people with diabetes avoid alcohol completely?
Not necessarily. Some people with diabetes can drink alcohol, while others may need to limit or avoid it because of medication, hypoglycaemia risk or other health circumstances. Alcohol can affect blood glucose differently from most other drinks.
If you use insulin or medicines that can cause low blood glucose, it is particularly important to understand how alcohol may affect you and to follow your healthcare team’s advice. See alcohol and diabetes for more detailed guidance.
Can dehydration affect blood glucose?
Diabetes and dehydration can be closely connected. When blood glucose is high, the kidneys may remove more glucose through the urine, which can increase urination and fluid loss and contribute to dehydration.
Persistent excessive thirst or frequent urination should not simply be managed by drinking more water without considering the underlying cause. If these symptoms persist, particularly alongside high blood glucose readings, seek advice from your healthcare professional.
Everyday drink choices do not need to be complicated. Making water your main source of hydration, choosing lower-sugar options more often and considering carbohydrate content, ingredients and portion size can provide a practical foundation.
Individual circumstances remain important, particularly with alcohol, hypoglycaemia, fluid restrictions and diabetes medication. The related guides below provide more detailed information about other food and drink groups and how they fit into the wider diet.
Related diabetes food guides
Making healthy drink choices is only one part of building a diabetes-friendly eating pattern. Explore the guides below for more detailed information about fruits for diabetics, vegetables for diabetics, grains for diabetics, dairy for diabetics, nuts for diabetics, seeds for diabetics, legumes and pulses for diabetics, fats and oils for diabetics, condiments for diabetics, herbs for diabetics, spices for diabetics, sweeteners for diabetics and breakfast for diabetics.
You can also explore broader guidance on the best diabetic diet, diet guidance for diabetics, food choices for diabetics and foods to avoid with diabetes, or use the type 2 diabetes diet sheet for practical meal planning. The diabetic food guide provides a food-group reference, while what can a diabetic eat? brings everything together in the site’s master guide.
What can a diabetic eat?
Start with the master guide to diabetic eating, covering food groups, balanced meals, meal planning and clear pathways to every detailed food guide.
Best diabetic diet
Compare different approaches to diabetes-friendly eating, including Mediterranean-style and lower-carbohydrate patterns, with food quality, portions, sustainability and individual needs in mind.
Diabetic food guide
Use a complete food reference organised by food group, with concise category summaries and links to detailed guides on foods and food types.
Diet guidance for diabetics
Learn practical daily eating principles, including balanced meals, carbohydrate choices, portions, meal structure and sustainable diabetes-friendly eating habits.
Food choices for diabetics
Make better everyday decisions through guidance on shopping, food labels, product comparisons, healthier swaps, eating out and balancing meals.
Foods to avoid with diabetes
Identify foods and drinks commonly worth limiting, understand why they may affect blood sugar or health and find more balanced alternatives.
Type 2 diabetes diet sheet
Use a practical framework for planning balanced meals, including meal structure, portion guidance and everyday examples for putting diabetes-friendly eating into practice.
Breakfast for diabetics
Explore healthy breakfast foods and practical meal ideas, including higher-protein, lower-carbohydrate, quick and grab-and-go options for balanced mornings.
Condiments for diabetics
Compare sauces, spreads, dressings and seasonings, with guidance on added sugar, salt, portions and practical diabetes-friendly choices.
Dairy for diabetics
Compare milk, yoghurt, cheese and dairy alternatives, considering carbohydrates, added sugar, protein, saturated fat and suitable portions.
Fats and oils for diabetics
Compare cooking oils and fats, with guidance on unsaturated and saturated fats, portions, cooking methods and heart health.
Fruits for diabetics
Compare suitable fruits, serving sizes and glycaemic impact, with guidance on fresh, frozen, canned and dried fruit and practical portions.
Grains for diabetics
Explore rice, oats, barley, quinoa, bread, pasta and cereals, with guidance on whole versus refined grains, serving sizes and portions.
Herbs for diabetics
Explore basil, coriander, mint, parsley, oregano and other herbs, including fresh and dried forms and practical ways to use them.
Legumes and pulses for diabetics
Learn about beans, lentils, chickpeas and peas, including their fibre, protein and carbohydrate content, portions and practical meal ideas.
Nuts for diabetics
Compare individual nuts, their healthy fats and nutrients, suitable portions and varieties without excessive salt, sugar or added coatings.
Seeds for diabetics
Learn about chia, flax, pumpkin, sunflower and sesame seeds, including their nutrition, portions and simple uses in meals and snacks.
Spices for diabetics
Explore cinnamon, turmeric, ginger, cumin, black pepper and other spices, with guidance on everyday use, blends and blood sugar considerations.
Sweeteners for diabetics
Compare stevia, monk fruit, sugar alcohols, artificial sweeteners and other alternatives, including blood sugar considerations, limitations and everyday use.
Vegetables for diabetics
Compare non-starchy and starchy vegetables, their fibre and carbohydrate content, suitable portions, cooking methods and meal ideas.
Drinks are only one part of diabetes-friendly eating. Use these related guides to explore other food groups, compare everyday choices, understand how food and drinks work together within balanced meals, and gradually build an eating pattern that works for your individual needs.
Final takeaway
Healthy drink choices for diabetes do not depend on special “diabetic” products or drinking water exclusively. Water is usually the best everyday choice, but unsweetened tea and coffee, milk, suitable plant-based drinks and other low-sugar options can all contribute to daily fluid intake.
The most useful considerations are the amount of carbohydrate and added sugar a drink provides, its portion size and whether it contributes useful nutrition. Fruit juice, smoothies, sweetened coffees, milkshakes and sugary soft drinks can provide substantial amounts of carbohydrate, while sugar-free alternatives may help reduce sugar intake when replacing sugar-sweetened drinks.
Individual needs also matter. Medication, blood glucose levels, physical activity, climate and other health conditions can influence drink choices and fluid requirements. Alcohol requires particular care for people at risk of hypoglycaemia, while anyone who has been given an individual fluid restriction or target should follow advice from their healthcare team.
There is no need to find one perfect drink for diabetes. Making water the foundation of everyday hydration, choosing lower-sugar drinks more often and considering the nutritional profile of other beverages provides a practical and sustainable approach. For a broader overview of how drinks fit alongside other food groups, see what can a diabetic eat?