Deep Dive Update into Vitamin B-12 and Seaweed, and Why Sea Lettuce May Be an Especially Good Source

Deep Dive Update into Vitamin B-12 and Seaweed, and Why Sea Lettuce May Be an Especially Good Source

Nutrition & Health

Vitamin B-12 is an essential nutrient that most Americans get by eating meat, seafood, and vitamin-fortified foods. It’s been known since the 1950’s that B-12 is also found in seaweed, but scientists have raised concerns about whether it comes in a form that can be metabolized by humans. However, better testing methodology is now adding evidence that seaweed B-12 can be used by humans and that it’s found in more species than originally thought, including sea lettuce. In this article, we take a deep dive into sea vegetables and vitamin B-12.