In 1912, who proposed the ‘vitamin hypothesis’, the concept that the deficiency diseases of beriberi, scurvy, pellagra and rickets are caused by the absence of specific chemical substances (in trace amounts) in the diet?
Casimir Funk
The correct answer is Casimir Funk.
Vitamin C (Ascorbic Acid): Deficiency causes scurvy. Niacin (Vitamin B3): Deficiency causes pellagra. Vitamin D: Deficiency causes rickets (in children) and osteomalacia (in adults). The discovery of vitamins and their link to deficiency diseases paved the way for modern nutritional science and public health efforts to prevent these conditions through dietary changes and fortification.
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