Abstract
A minimum weight for height, apparently representing a critical fat storage, must be maintained for the onset and maintenance of regular menstrual function in the human female. This paper discusses how nutrition can affect the time of attainment and level of function of each reproductive event in the female, thus affecting the length of reproductive span and reproductive efficiency. When the observed fertility rate of a population is lower than that in a well‐nourished noncontracepting population, the lower fertility could be explained wholly or in part by inadequate nutrition causing delayed menarche, longer than normal adolescent sterility, irregularity or cessation of menstrual function, higher pregnancy wastage, longer lactational amenorrhea, and early menopause.