Biotin (B7)
Biotin (vitamin B7) is a water-soluble vitamin that serves as a coenzyme for carboxylase enzymes in fat, carbohydrate, and protein metabolism. The Adequate Intake for adults is 30 µg/day. Deficiency is uncommon and can cause hair loss and skin rashes.
- Unit
- µg
- RDA (adult)
- 30 µg
- Functions
- Coenzyme for carboxylase enzymes in fatty acid synthesis, Gluconeogenesis (glucose production), Amino acid metabolism, Supporting hair, skin, and nail health
- Food sources
- Egg yolk, Liver, Nuts, Seeds, Salmon, Sweet potato, Yeast
- Deficiency
- Rare; causes hair loss, scaly red rash around the eyes and mouth, and neurological symptoms.