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I have Vital Proteins Collagen Peptides Unflavored, which is 90% protein (9g protein per 10 g serving).

The whey protein isolates I've seen are also approximately 90% protein. Because I already have the collagen, I'd like to substitute it for whey protein isolate in recipes for gluten-free baked goods. I've searched this topic online and am coming up blank. I have yet to find a GF baked recipe that uses collagen in the same way that they're using the WPI. Anyone out there have any experience/knowledge with subbing collagen for the isolate? Thanks for the help, Mary

Note: I am specifically asking about isolate, not just whey protein.

Unheilig
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Veithurst
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3 Answers3

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Referring to whey protein, not specifically whey protein isolate, Carolyn Ketchum writes as follows: "I do not recommend using collagen peptides or collagen protein powder as a replacement for why or egg white protein....the baked goods always become quite gummy and difficult to cook through." Ultimate Guide to Keto Baking

Linda Nelson
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I do not know scientifically what the differences are when used in baking, but I have used collagen hydrosylate as a replacement for WPI in keto baking. I cannot tolerate dairy, so I have had no choice, and cannot compare the results directly. I saw the Bulletproof Blog using collagen hyrosylate in some recipes (which deflate), and there were no adverse textural results, so I have been adding it for extra protein into just about everything I bake now. I too have searched repeatedly online, and no one seems to have answered this for the general public.

Sara
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I have a keto baking book and it states you can substitute with collagen powder or peptides.

user85464
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