Zoology - Digestion and Absorption Question with Solution | TestHub

Marasmus is a nutrient deficiency disease in infants below 1 year of age that occurs when sufficient mother's milk is not given to the child. Prolonged starvation causes marasmus due to a generalized wasting of the body because of both energy and protein deficiency. The body becomes lean and weak, eyes depressed and skin wrinkled. Kwashiorkor is a disease caused by continued deficiency of proteins in diet although energy intake may be adequate. Rickets (in children) occurs due to deficiency of vitamin-D. Pellagra occurs due to deficiency of nicotinamide (vitamin-B₃).