Does Goat Milk Raise Blood Sugar? 7 Things People With Diabetes Should Know

Does Goat Milk Raise Blood Sugar? 7 Things People With Diabetes Should Know

If you live with diabetes or prediabetes, choosing the right type of milk to buy can be confusing. Many people wonder if switching from cow's milk to goat's milk is a better option for maintaining stable glucose levels. Yes, goat's milk does cause your blood sugar to rise; however, this is typically a slow and gradual increase.

Understanding how dairy affects your body can be achieved by looking at the carb, protein, and fat content, as well as the portion size.

There are seven key facts that people with diabetes should be aware of:

1. Goat Milk Contains Natural Sugars

Even unsweetened goat's milk contains carbohydrates. Like cow's milk, goat's milk contains lactose, a natural sugar that is broken down into glucose by your digestive system. An 8-ounce serving of whole goat's milk contains around 11 grams of carbs, all from natural lactose. Because this impacts your blood glucose levels, you should count it toward your daily carbohydrate allowance (American Diabetes Association).

2. It Has a Low Glycemic Index

Despite containing natural sugars, goat's milk has a low glycemic index (GI), which typically ranges between 24 and 35. Low-GI foods cause glucose to enter your bloodstream slowly. Research from the University of Sydney Glycemic Index Research Service confirms that dairy milks cause a much slower increase in blood glucose than sweet fizzy drinks or fruit juices. A clinical trial from 2023 also found that unsweetened goat's milk yogurt had a low GI score of 26, causing much smaller increases in blood glucose after a meal (Nutrients).

3. It Is High in Protein and Fat

Goat's milk contains a natural balance of nutrients. A 1-cup serving of whole goat's milk contains around 9 grams of protein and 10 grams of fat. Combining carbs with protein and fat helps slow down the rate of digestion (Julia Zumpano, RD, Registered Dietitian at Cleveland Clinic). This helps prevent a sudden spike in blood glucose.

4. It Has a Slightly Lower Carbohydrate Content

Goat's milk has a slight advantage when comparing nutritional information. Whole cow's milk contains around 12 grams of carbohydrates per cup, whereas whole goat's milk has around 11 grams (USDA). Whole dairy products also digest more slowly due to their natural fat content (Clemson University Cooperative Extension), helping provide a more stable glucose response.

5. Animal Studies Show Promise, But Human Trials Are Limited

Research has shown that goat's milk helped improve fasting blood glucose, insulin sensitivity, and healthy gut bacteria in diabetic mice and rats. This was found in a 2021 study and a 2024 follow-up study by researchers at Peking University, published in the peer-reviewed journal Molecular Nutrition & Food Research. However, endocrinologists highlight that there are limited large-scale human trials. Therefore, goat's milk should be seen as a healthy dairy option, not a medical solution for diabetes.

6. Watch Out for Added Sugars and Saturated Fat

Plain goat's milk is a healthy option, whereas many sweetened and flavored goat's milk drinks and yogurts contain high amounts of added sugars. Whole goat's milk is also relatively high in calories and saturated fat. Because people with diabetes have an increased risk of heart disease, the American Diabetes Association and the Academy of Nutrition and Dietetics recommend keeping saturated fat to a minimum.

7. Individual Responses Vary

Everyone's body responds slightly differently to dairy products. It is recommended to start with a small portion and combine it with high-fiber foods, such as plain rolled oats, chia seeds, and fresh berries. If you use a blood glucose meter or continuous glucose monitor, the best way to see how your body is responding is to check your levels 1 to 2 hours after drinking goat's milk (Johns Hopkins Patient Guide to Diabetes and Centers for Disease Control and Prevention).

Note: This information is for educational purposes only and should not be used as a substitute for professional medical advice. Always consult your doctor or registered dietitian before making any major changes to your diet or health.