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Casein Protein Powder — glycemic index and gestational diabetes guide

Allergen Information

Contains: Milk

May contain: Soy, Gluten, Tree Nuts

Nutrition per 100g

Calories360 kcal
Carbohydrates5g
of which Sugars4g
Fiber1g
Protein80g
Fat2g
of which Saturated1g
Sodium200mg
Glycemic Index20

ProteinsProtein Supplements

Casein Protein Powder for Gestational Diabetes

blood sugar stablebedtime snackhigh protein

Casein is the main protein found in milk, constituting about 80% of its protein content. It is known as a 'slow-digesting' protein because it forms a gel-like substance in the stomach, leading to a steady, prolonged release of amino acids into the bloodstream. This makes it distinct from whey, which is absorbed much more rapidly. This slow-release property makes casein an excellent choice for sustained muscle protein synthesis and satiety. It is a complete protein, containing all essential amino acids required by the body.

Gestational Diabetes Profile

GD Suitability

GI Impact

low

Glycemic Index

20 · low

Is Casein Protein Powder safe with gestational diabetes?

Casein protein powder is an excellent choice for managing gestational diabetes due to its minimal impact on blood sugar. Its high protein and very low carbohydrate content provide essential nutrients without causing glucose spikes. The slow-digesting nature helps maintain stable blood glucose levels for several hours, which is particularly beneficial for preventing overnight hypoglycemia. This makes it a safe and effective supplement to help meet increased protein needs during pregnancy while supporting glycemic control.

How does Casein Protein Powder affect blood sugar during pregnancy?

The glycemic index of casein is very low, meaning it causes a negligible rise in blood sugar levels. When consumed, it forms a gel in the stomach, which slows down the absorption of nutrients, including any carbohydrates consumed with it. This blunts the overall glycemic response of a meal or snack, promoting excellent blood sugar stability. This sustained release of amino acids provides energy without the need for a significant insulin response, which is ideal for GD management.

What is a safe portion of Casein Protein Powder for gestational diabetes?

A typical serving is one standard scoop, which provides a significant amount of protein without excess calories or carbohydrates. This portion is perfect for a bedtime snack to help manage fasting blood sugar levels. You can mix it with water or an unsweetened milk alternative to create a shake. Alternatively, stir a scoop into a serving of plain Greek yogurt for a thick, pudding-like treat that is both satisfying and beneficial for blood sugar control.

How should I combine Casein Protein Powder to manage blood sugar during pregnancy?

To maximize its benefits, pair casein protein with a source of healthy fat and fiber. For example, blend a scoop of casein with unsweetened almond milk, a tablespoon of chia seeds, and a spoonful of almond butter. This combination further slows digestion and enhances satiety, keeping you full and your blood sugar stable for longer. Avoid mixing casein with high-sugar liquids like fruit juice or sweetened milk, as this would counteract its low-glycemic benefits.

Last reviewed: July 3, 2026

Talk to Your Healthcare Provider

Ratings and portion guidance on this page are for informational purposes only and do not constitute medical advice. Every pregnancy is different — always confirm your blood sugar targets and meal plan with your OB-GYN, midwife, or certified diabetes educator. By using this guide, you agree to our Terms and Conditions.

Content independently developed by SugarCurve Editorial Team, informed by the American Diabetes Association's Standards of Care in Diabetes, ACOG's gestational diabetes guidelines, and the IADPSG consensus criteria. Not endorsed by or affiliated with any referenced organization. · Last reviewed: July 2026

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