Which of the Following Is Not True About the Effects

Which of the following is not true about the effects of undernutrition in poor countries?

A) Iron and zinc deficiency can contribute to reduced immune function.
B) Ill health that results from nutritional deficiencies can reduce optimal physical and mental performance.
C) Symptoms of underweight rarely result in nutritional deficiencies.
D) People in underdeveloped countries often have greater nutrient requirements to combat infectious disease and parasites.