Nutrition and human fertility.

Conclusions The results of gross malnutrition and deprivation of foodstuffs can therefore be due to some of these individual nutrient deficiencies, in so far as animal results apply to man. They can be due to other individual dietary deficiencies, they can be due to the algebraic effect of several deficiencies. Still more, of course, gross deprivation of protein and fats can be expected to cause such a general depression of bodily activity and vigour that fertility will fall. These last effects have, however, not been analysed quantitatively, apart from factors such as lysine needed for growth in general.