Many marine collagen products also market themselves as natural or eco-friendly, featuring images of waves and fish and references to cold, clean ocean waters. With these marine collagen products, shoppers are buying a black box of marine ingredients, said Kelly Roebuck, sustainable seafood campaigner with the Canadian marine conservation group Living Oceans Society, in an email to CBC News. Azizur Rahman of the University of Toronto, seen here diving in Okinawa, Japan, researches the potential of marine collagen from various sources and is developing marine collagen products. The tricky part is marine collagen products may not say what they're made of. The question of byproductsWhile using byproducts to make marine collagen does seem to have a lower impact, it could still have consequences.
