Ingredient

Milk Protein Isolate

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Source
Animal-derived
Allergen
No
Role in food
Manufacturers add milk protein isolate to foods to increase their protein content. It also …

What it is

Milk protein isolate is a dairy ingredient made by filtering milk to remove most of its lactose, fat, and water. This process concentrates the protein, resulting in a product that is typically 90% protein or more. It contains both casein and whey proteins, similar to their natural ratio in milk.

Why it's used

Manufacturers add milk protein isolate to foods to increase their protein content. It also helps improve the texture of products, acts as an emulsifier to blend ingredients, and can help stabilize foods. It is often found in protein bars, shakes, yogurts, and other nutritional supplements.

Health notes

In the United States, milk protein isolate is generally recognized as safe (GRAS) by the FDA. It is considered safe for consumption by most people as part of a balanced diet. International bodies like JECFA and EFSA typically do not set acceptable daily intake (ADI) limits for primary food components like milk protein isolate, as it is a concentrated form of a common food.

Allergen info

Milk protein isolate is derived from milk and is therefore considered a major food allergen.

Products containing Milk Protein Isolate

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ATKINS Caramel Nut Chew Bar Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 382kcal 14.7Protein 23.5Fat 50Carbs LAKEVIEW FARMS Greek Yogurt & Gel Yogurt 91kcal 3.0Protein 0.5Fat 19.2Carbs PERFECTLY SIMPLE Simple Nutrition Bars Snack, Energy & Granola Bars 475kcal 27.5Protein 22.5Fat 37.5Carbs PERFECTLY SIMPLE Oatmeal Chocolate Chunk Bar Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 450kcal 25Protein 20Fat 45Carbs POWERCRUNCH Protein Genius Bars Snack, Energy & Granola Bars High in saturated fat — 30% DV per serving 512kcal 35Protein 32.5Fat 22.5Carbs Post Foods, LLC Performance Energy Wafer Bar Snack, Energy & Granola Bars 425kcal 5Protein 12.5Fat 72.5Carbs QUEST BAR Protein Bar, Cookies & Cream Snack, Energy & Granola Bars 300kcal 35Protein 11.7Fat 36.7Carbs Post Foods, LLC Performance Energy, Wafer Bar Snack, Energy & Granola Bars 425kcal 7.5Protein 10Fat 72.5Carbs PERFECTLY SIMPLE Roasted Cashew & Dark Chocolate Bar Snack, Energy & Granola Bars 475kcal 27.5Protein 22.5Fat 37.5Carbs EAS Get Lean & Toned Bars Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 420kcal 30Protein 14Fat 46Carbs PARENT'S CHOICE Parent's Choice, Nutritional Shake, Chocolate Energy, Protein & Muscle Recovery Drinks 100kcal 2.9Protein 3.8Fat 12.9Carbs SUPLENA Therapeutic Nutrition Energy, Protein & Muscle Recovery Drinks 177kcal 4.4Protein 9.5Fat 19.3Carbs
Natural Flavors (394 products) Salt (358 products) Water (304 products) Soy Lecithin (290 products) Sugar (253 products) Whey Protein Isolate (238 products) Sucralose (183 products) Protein Blend (170 products) Whey Protein Concentrate (166 products) Palm Kernel Oil (166 products)

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.