Posted 19 November 2020
Consumer Reports has spotlighted the lack of scientific support for claims that consuming collagen powders, pills, and foods can result in smoother skin, shinier hair, stronger nails, healthier joints, and more lean muscle mass.
Reference: Wadyka S. The real deal on collagen. Consumer Reports, Oct 13, 2020
The article notes that Nutrition Business Journal projects collagen supplement sales in the U.S. to reach $298 million this year—up from $73 million in 2015. Collagen is a protein that holds skin, tendons, ligaments, bones, and cartilage together. But that doesn’t mean that consumers benefit from collagen in supplements or added to foods, such as energy bars, oatmeal, smoothies, coffee creamers, and popcorn. The human body makes collagen from glycine, proline, hydroxyproline, and other amino acids when proteins (not limited to collagen) are digested. The bottom line in the article is that “until there’s more conclusive evidence in favor of supplements or collagen-enhanced foods, the best solution may be to focus on eating a healthy diet that supplies adequate amounts of protein and limiting sun exposure.”
Source: Consumer Health Digest #20-45, November 15, 2020