Your pooch needs a healthy gut, too.
Collagen aids digestion by rebuilding the protective lining of your dog’s gut. This is crucial since, over time, things like bacterial imbalance, inflammation, and stress can create “gaps” in his intestinal lining.
In short, collagen “seals and heals” those gaps by forming connective tissue and providing healing amino acids like glycine and lysine to the intestinal lining.
Glycine—the most abundant amino acid in collagen—has been shown to enhance the intestinal mucosal barrier (a layer of thick mucus that allows the uptake of essential nutrients and immune sensing). This, in addition to glycine’s ability to suppress oxidative stress and inflammatory responses, can soothe your dog’s digestive system (3, 4, 5).
Another abundant amino acid in collagen is lysine. In multiple animal studies, it was found that the metabolism of lysine is needed to maintain the integrity and function of the gut, as well as produce intestinal glycoproteins (3).
3. Collagen for Your Dog’s Skin and Coat Health