The scientific papers reviewed for this article involve enzyme systems, cultured cells, rats or mice
It is an important nutrient for vision because it can significantly improve visual accommodation
Vitamin B12 is found exclusively in animal foods or foods fortified with this vitamin, such as: Meat and chicken: especially organ meat and red meat like beef Fish and seafood: especially clams, sardines, tuna, trout, and salmon Dairy: including milk, cheese, and yogurt Eggs: especially egg yolk Fortified foods: breakfast cereal, nutritional yeast, as well as some mock meats or plant milks Supplements, which are widely available in stores and online, are another way to meet your daily requirements
In 2026, they are increasingly appearing in premium serums, scalp treatments, and peptide-based cosmetic systems