ScienceContemporaryglobalhigh confidence

Vitamin C and the B vitamins do not build up in the human body and need to be consumed regularly.

Notes on verification

Confirmed by multiple reputable medical/nutrition sources (NIH MedlinePlus, Cleveland Clinic, Colorado State University Extension, Medical News Today). Minor caveat: vitamin B12 can be stored in the liver for years, unlike other B vitamins and vitamin C.

Sources

Vitamin C and the B vitamins do not build up in the human… · DeepInquiry