- Brian K. Vaughan, Cliff Chiang, Matt Wilson, Jared K. Fletcher
The Collagen Diet: A 28-Day Plan for Sustained Weight Loss, Glowing Skin, Great Gut Health, and a Younger You
From the bestselling author of Keto Diet and bestseller Eat Dirt, a 21-day plan -- including more than 80 delicious recipes -- to lose weight, improve digestion, and renew your youth by taking advantage of dietary collagen.
Today, interest in dietary collagen is















