Can Diabetics Drink Milk? What the Evidence Says by Type

Can diabetics drink milk? The question comes up fast because milk is a daily staple. Diabetes UK says milk and yogurt contain carbohydrate from lactose, which makes a difference to blood glucose.^[1] That does not make milk off limits. This guide sets out what the research shows and where it runs out. This guide is general education. If you use insulin or other glucose medicines, follow the plan your diabetes team gave you.

Can diabetics drink milk?

Yes, for most people. The American Diabetes Association (ADA) 2026 Standards name low-fat dairy or nondairy alternatives among foods to include. This applies to people with prediabetes and diabetes.^[3] Diabetes UK gives 200 ml (⅓ pint, about 6.8 fl oz) of milk as one portion and says to aim for 3 portions.^[1]

The ADA also lists carbohydrate from "dairy (milk and yogurt) or fortified nondairy alternatives" next to vegetables, legumes, fruit and whole grains.^[3] Milk is one carbohydrate source among several.

The useful question is how much, which type and with what. Ask your clinician or dietitian how to count a glass of milk. This matters if you count carbohydrate for insulin doses or take medicines that can cause low blood sugar.

What do large studies say about dairy and type 2 diabetes?

Pooled cohort studies find a small inverse link, strongest for yogurt, and none of them prove cause. A meta-analysis of 22 cohorts covered 579,832 people and 43,118 type 2 cases. It gave a relative risk of 0.97 per 200 g (7 oz) of total dairy a day (95% CI 0.95 to 1.00).^[2]

Milk on its own is less clear. An earlier analysis found a relative risk of 0.87 per 200 g (7 oz) of milk a day. The range ran from 0.72 to 1.04 and the studies disagreed a lot (heterogeneity 94%).^[4] A range that crosses 1.0 means the result could be no effect at all.

Three large US cohorts, with 15,156 cases, found that neither low-fat nor high-fat dairy was appreciably associated with risk. Yogurt was the exception.^[5] A 2022 review reported that milk and low-fat dairy did not show the same pattern as total dairy and yogurt.^[6]

Read these with care. The people studied did not have diabetes at the start, and the studies show association, not proof. They say little about what a glass of milk does to your glucose once you have diabetes.

Does milk raise blood sugar?

A little, yes. Milk contains lactose, and Diabetes UK says this "will make a difference to your blood glucose levels".^[1] The USDA FoodData Central entry for whole milk lists 4.63 g (0.16 oz) of carbohydrate per 100 g (3.5 oz), and nonfat milk lists 4.85 g (0.17 oz).^[7] A 200 ml (6.8 fl oz) glass holds roughly twice that.

The rise is usually gentle. Diabetes UK says foods scoring 55 or below on the glycaemic index (GI) raise blood glucose slowly, and it lists unsweetened milk among them. It explains that milk has a low GI because it is high in protein and contains fat.^[8] A 2021 review of GI tables also found dairy products usually low-GI.^[9] We found no verified GI figure for milk, so we give none.

A 2023 review of human studies concluded that milk can "deliver comparatively high levels of carbohydrate with limited glycemic responses".^[10] One author is affiliated with the dairy company FrieslandCampina and the work was funded by the Dutch Dairy Association, so weigh that. In a small crossover trial of 12 healthy men, the glucose response to white bread was different when dairy milk was drunk with it.^[11] That trial did not include people with diabetes, and it does not make milk a tool for managing glucose.

Which cow's milk fits people with type 2 diabetes?

The research cannot name one. Neither the ADA nor Diabetes UK ranks milk types. We found no trial that compared whole and skimmed milk on blood glucose in people with type 2 diabetes. The NHS advises going for reduced-fat and unsweetened options.^[12] For milk and diabetes type 2, which milk is good comes down to fat, added sugar and what the label says.^[12] Count the carbohydrate either way.^[1]

Fat does not change the carbohydrate much. USDA lists 4.63 g (0.16 oz) per 100 g (3.5 oz) for whole milk and 4.85 g (0.17 oz) for nonfat.^[7] Diabetes UK says semi-skimmed or skimmed milk is just as nutritious as full fat but with fewer calories. In the US this is called low-fat or skim milk.^[1] The US cohort data above also showed no clear gap between low-fat and high-fat dairy for diabetes risk.^[5]

So the choice mostly comes down to calories and your wider diet. Reduced-fat milk has fewer calories, and the USDA figures show the carbohydrate stays about the same.^[7] Plain milk is the simplest default. Check the label on flavoured milk drinks for added sugar.

Is almond, oat or soy milk better for blood sugar?

No trial in type 2 diabetes compares them, so no plant milk can be called better. Diabetes UK says plant milks typically have less protein, saturated fat and calories than cow's milk. They may contain more carbohydrate. Choose unsweetened and calcium-fortified ones.^[1] Composition is the main guide we have.

People often ask what kind of milk can diabetics drink, so the table puts the evidence side by side. Figures are per 100 g (3.5 oz) from generic USDA entries, and brands differ, so read your label. A standard 200 ml (6.8 fl oz) UK glass is roughly twice these 100 g (3.5 oz) figures, and a 240 ml (8 fl oz) US cup is about 2.4 times.

Milk and plant milks compared

Soy milk

Soy is the only plant milk with human trials that we could find. In 29 healthy young adults, the rise in capillary glucose after 500 mL (16.9 fl oz) of soy drink with 20 g (0.7 oz) of carbohydrate was "negligible".^[13] A review of 17 trials in 504 adults swapped soymilk for cow's milk at about 500 mL (16.9 fl oz) a day. Some cardiometabolic markers changed, but "no other outcomes showed differences".^[14] Those adults did not all have diabetes. One author was employed by the Soy Nutrition Institute Global, which is funded by the soy industry. Several authors also reported food industry grants or fees, including from the United Soybean Board.^[14]

Almond milk and blood sugar

People ask about almond milk and blood sugar because the carbohydrate is so low. That is true for the unsweetened kind, at 0.671 g (0.02 oz) per 100 g (3.5 oz).^[7] Sweetened versions can look very different, and the protein is also low. If almond milk replaces cow's milk, make sure the rest of your day covers protein and calcium.

Oat milk

The USDA entry for unsweetened oat milk shows 5.1 g (0.18 oz) carbohydrate per 100 g (3.5 oz), close to cow's milk.^[7] The 2023 review warned that some plant drinks can produce much stronger glycemic responses. It named carbohydrate type, concentration and gastric emptying as reasons.^[10] No trial of oat milk in people with diabetes turned up. Use your own readings. The ADA accepts nondairy alternatives but does not rank them.^[3]

Can diabetics drink milk at night?

No study of bedtime milk in people with type 2 diabetes turned up. What we can say is practical. Whole milk has about 4.6 g (0.16 oz) of carbohydrate per 100 g (3.5 oz),^[7] and Diabetes UK counts 200 ml (6.8 fl oz) as a portion.^[1] The evening effect depends on portion and everything else you ate.

Think of a bedtime glass as part of your total evening carbohydrate. A small glass after a light dinner is a different situation from a large one after a heavy meal. Your own overnight and morning readings are the useful check here.

If you see unexplained overnight lows or high morning readings, tell your clinician before changing your routine. Do not add or drop a bedtime snack on your own if you use insulin or a medicine that can cause lows, such as gliclazide or glimepiride. To treat a hypo, the NHS lists something that raises blood sugar quickly, such as a small glass of fruit juice or glucose tablets. Milk is not on that list.^[15]

Low blood sugar usually means below 4 mmol/L (72 mg/dL) in the UK^[15] or below 70 mg/dL (3.9 mmol/L) in the US.^[16] Our guide to low blood sugar lists the warning signs, and our page on bedtime routines covers the wider picture. In the UK, the NHS says to call 999 if someone may have very low blood sugar and is not responding normally or is unconscious, and a glucagon injection is not available or you do not know how to use it, or they have not recovered within 10 minutes of a glucagon injection, or they have been drinking alcohol.^[15] In the US, the ADA says to call 911 right away if someone is unconscious and glucagon is not available or no one knows how to use it.^[16]

1. Count cow's milk, lactose-free milk and oat milk toward your meal or snack carbohydrate.^[1][7][12]
2. Choose plain, unsweetened milk or plant drinks rather than sweetened or flavoured versions.^[1][12]
3. Pick calcium-fortified plant drinks if you swap out dairy milk, and check the protein figure on the label.^[1][7]
4. Check your blood glucose before and two hours after a glass of milk or a milky drink if you want to see your own response.^[1]
5. Keep glucose tablets or fruit juice on hand to treat hypos quickly rather than relying on milk.^[15][16]

Questions to ask your diabetes team

• How should I count a 200 ml (6.8 fl oz) glass of milk, or milk in tea and cereal, inside my carbohydrate or insulin plan?^[1][3]
• If I switch from cow's milk to unsweetened almond or soy milk, do any of my mealtime insulin or tablet doses need to change?^[1][7]
• Which fat level of milk fits my calorie, weight and cholesterol goals?^[1][12]
• Do I need a bedtime snack or glass of milk with my evening diabetes medicine, or is it better to leave it out?^[15][16]

Frequently asked questions

Is milk good for people with diabetes?

It can fit. The ADA lists low-fat dairy or nondairy alternatives among foods to include.^[3] Diabetes UK notes that milk contains lactose, so it affects blood glucose and should be counted, and it gives 200 ml (⅓ pint, about 6.8 fl oz) as one portion.^[1] Ask your dietitian how a glass fits your carbohydrate plan.

Does skimmed milk have less sugar than whole milk?

No. USDA lists 4.63 g (0.16 oz) of carbohydrate per 100 g (3.5 oz) for whole milk and 4.85 g (0.17 oz) for nonfat milk.^[7] The fat level changes calories, not the lactose. Diabetes UK says semi-skimmed or skimmed is as nutritious as full fat with fewer calories.^[1]

Does unsweetened almond milk have less carbohydrate than cow's milk?

Yes. The USDA entry for unsweetened almond milk lists 0.671 g (0.02 oz) of carbohydrate per 100 g (3.5 oz), against 4.63 g (0.16 oz) for whole milk.^[7] It also has less protein, 0.656 g (0.02 oz) against 3.27 g (0.12 oz). Brands vary, so check the label.

Is yogurt different from milk for blood sugar?

Somewhat. In a review of 93 yogurt GI values, the mean was 34 and 92% of the yogurts were low-GI (55 or below). The same paper notes yogurt's insulin response is higher than its GI would suggest. Its author part-owns a GI testing company and received an honorarium from the Danone Institute.^[17] US cohorts linked yogurt to a smaller chance of developing type 2 diabetes.^[5]

Is lactose-free milk good for diabetics?

It can fit. The NHS says lactose-free dairy has an added enzyme, lactase, that digests the lactose.^[12] The sugar is split, not removed, so lactose-free milk still contains carbohydrate. Count it like regular milk and check the label for added sugar. We found no trial of lactose-free milk in people with type 2 diabetes.

Does milk spike blood sugar?

Usually only a small rise. Diabetes UK lists unsweetened milk among foods with a GI of 55 or below, which raise blood glucose slowly.^[8] Milk still contains lactose. USDA lists 4.63 g (0.16 oz) of carbohydrate per 100 g (3.5 oz) of whole milk.^[7]

Where to go next

For more on counting carbohydrates and planning steady meals, see:

• Carbohydrates and blood sugar, for how to count and compare carbohydrate across foods.
• Breakfasts for blood sugar stability, since that is where most milk is poured.
• Is Diabec legit?, with the company details, the herbs and the refund terms.

Note: If you are pregnant, breastfeeding, or considering giving any supplement or herbal product to a child, consult your healthcare provider before making any changes to your diet, supplement routine, or prescribed medications.

Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before changing your diet, your activity or your medicines, and before starting any supplement.