Not Vegan (Animal-Derived)Category: dairy, protein, animal-byproductReviewed: Aug 1, 2025
Whey
Whey is the liquid remaining after milk has been curdled and strained during cheese making. It is directly animal-derived.
Vegan Status Breakdown
Whey is the liquid remaining after milk has been curdled and strained during cheese making. It is directly animal-derived.
Biological Origin & Animal Source:
Bovine milk
Common Synonyms, E-Numbers & Trade Names:
whey proteinwhey powdersweet wheywhey isolatewhey concentratemilk whey
Hidden & Derivative Names to Watch Out For:
whey protein isolatewhey protein concentratehydrolyzed wheysweet dairy wheydemineralized whey
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Common Uses & Applications
•Protein powders and bars
•Baked goods and snack foods
•Processed cheeses and sauces
•Sports nutrition supplements
•Margarines
Nutrition Facts (per 100g)
Standard reference data via USDA FoodData Central
350
Calories (kcal)
78g
Protein
6g
Carbohydrates
1.5g
Total Fat
0.9g
Dietary Fiber
Calcium: 400 mg
Plant-Based Substitutes
Culinary swaps with exact ratios and chef instructions
Unsweetened Soy Milk
protein, moisture, emulsifierRatio: 1 cup unsweetened soy milk per 1 cup dairy milk (1:1 direct match for cooking, baking, and drinking)
High protein and lecithin content make it curd-resistant in high heat cooking.
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Scientific & Regulatory Authority Sources:
Frequently Asked Questions
Is whey protein vegan?
No. Whey is extracted from dairy milk and is not vegan. Vegans use pea, soy, rice, or hemp protein instead.