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The Lesser-Known Protein

Muscle & Fitness

October 2019

Boost recovery and muscle growth with collagen.

- James Biddle

We’re sure you’ve heard of whey and casein protein before, but probably not collagen. And seeing as it makes up 25% to 35% of all the protein in your body, you should know a little more about it.

This story is from the October 2019 edition of Muscle & Fitness.

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