I’m looking for insights from licensed nutritionists, functional medicine experts, and registered dietitians in the USA, on the benefits and potential side effects of collagen protein complex. How do various collagen sources such as hydrolyzed bovine, fish, chicken, and eggshell membrane benefit skin, joints, and overall health? Specifically, I’m interested in the effects of collagen Types I, II, III, V, and X on skin elasticity, hydration, and reduction in wrinkles. Are there key scientific studies supporting these benefits? Additionally, I’d love to hear your professional perspective on any potential side effects, contraindications, and the strength of research regarding these collagen supplements.

Research on collagen and skin health seems to be pretty promising with collagen supplementation improving skin elasticity, hydration, and reducing wrinkles. Collagen type I is the most abundant type of collagen in our bodies and it has the most research studies to support its' use for reducing wrinkles and improving skin elasticity and hydration. Collagen peptides, marine collagen, and eggshell membrane all provide type 1 collagen. While the research on collagen sources is evolving and promising, it's not entirely rock solid yet. Most research studies have used small sample sizes and are usually very short term, typically 6 to 12 weeks long. Regardless, collagen is typically well tolerated by most people and the risk of trying collagen is usually minimal. Collagen can provide a small boost in protein intake too. Source: https://pubmed.ncbi.nlm.nih.gov/33742704/ https://pubmed.ncbi.nlm.nih.gov/37432180/ If you choose to use any of my response, I'd prefer a link to my website rather than LinkedIn if possible, thank you!