noun
vitamin B; B vitamins
Refers to the group of B vitamins. Often used in nutritional contexts.
See also: ビタミンＢ複合体 (ビタミンビーふくごうたい)
ビタミンＢはエネルギー代謝に必要です。
Vitamin B is necessary for energy metabolism.
ビタミンＢ複合体 specifically refers to the vitamin B complex, while ビタミンＢ is a broader term for B vitamins.
From English 'vitamin B'.