These days, we prefer tender, lean meats, which means our diets contain very little collagen.
In fact, only 1% to 3% of the protein we eat is collagen.
This is a problem because 30% of all protein in our bodies is collagen, making us largely deficient compared to our ancestors, who ate nose-to-tail. A collagen deficiency impacts your body's ability to repair itself.
To increase your collagen intake, you can consume collagen-rich foods, like bone broth and the skin on chicken or fish. Bone marrow is also an excellent source of collagen!
Dr. Eric Berg, DC, not MD; information only