Vitamin B is a complex of several vitamins. The name arises because it was once considered a single vitamin, much like Vitamin C or Vitamin D. Since later research has shown it is in fact a complex of chemically distinct vitamins that happen to often coexist in the same foods, the name has gradually declined in use, being replaced by the generic term "the B vitamins", the vitamin B complex , or by the specific names of each vitamin.
Vitamin B-w, another name for Vitamin B-7 (Biotin)
Vitamin B-x, also PABA (Para-Aminobenzoic acid)
In addition to coexisting in the same foods, the B vitamins often work together to bolster metabolism, maintain healthy skin and muscle tone, enhance immune and nervous system function, and promote cell growth and division — including that of the red blood cells that help prevent anemia.
VitaminB is a complex of eight water soluble vitamins, active in cell metabolism.
Since later research has shown it is in fact a complex of chemically distinct vitamins that happen to often coexist in the same foods, the name has gradually declined in use, being replaced by the generic term "the Bvitamins", the vitaminB complex, or by the specific names of each vitamin.
As might be expected due to its high content of brewer's yeast, beer is a good source of Bvitamins [4], [5], although this may not be true of filtered beers [6], [7]; in fact, beer is sometimes referred to as "liquid bread" [8].