Marine collagen peptides are a popular ingredient used in nutraceuticals and health products. Like bovine and porcine collagen, they’re produced from natural animal sources – in this case, the skins of wild-caught ocean fish.
How They Work
In addition to providing amino acids that are essential for healthy connective tissue, collagen also helps maintain bone strength. Studies show that taking collagen supplements can help reduce the loss of bone mass that can lead to osteoporosis.
How to Choose a Good Product
While there are many types of collagen peptides on the market, they’re all made from collagen sourced from a protein found in connective tissues such as skin and bones. Collagen peptides are available in a variety of forms and concentrations, so it’s important to find one that fits your needs.
How to Avoid Toxicity
Because collagen peptides are made from natural proteins, they may contain trace amounts of allergens. If you’re concerned about this, look for an organic, vegetarian or pescatarian-friendly brand that is certified non-GMO and does not use fillers to boost production.
How to Choose a Good Supplement
Because marine collagen peptides are derived from fish skin and scales, it’s best to purchase a product that is sustainably caught or wild-caught, says Jampolis. Typically, these products are certified by the Marine Stewardship Council or the Sustainable Seafood Coalition.
Another thing to consider is if the product you’re buying is gluten-free and hormone and antibiotic-free, says Jampolis. Lastly, be sure that the collagen is hydrolyzed, which means it’s broken down into smaller molecules that are more bioavailable and easier for your body to absorb.