Although the vitamin sounds like a single vitamin, there are in fact eight B vitamins that are more of less prevalent in different foodstuffs, and regularly added as fortification to breads and cereals, for example - thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folate/folacin or folic acid (B9) and cobalamins (B12)
Typical daily range: 100300 mcg once daily in the evening (gradual titration)
Common nail signs of iron deficiency include: Koilonychia (spoon nails) : The nail plate becomes thin and develops a concave, spoon-like depression
Furthermore, AAS are banned according to the List of Prohibited Substances and Methods of the World Anti-Doping Agency (WADA) (World Anti-Doping Agency, 2024c)