At different life stages, our bodies need different nutrition to meet the metabolic demands. Infants need different nutrition than teens who need different nutrition than pregnant women who need different nutrition than elders. Throughout our lives we need to keep adjusting our diet to meet these changing demands.
When we are preparing to get pregnant, we can think of it as switching our diet from an adult appropriate diet to one that will properly nourish a developing egg or sperm.
As a community, our ancestors fed the men and women who were of childbearing age the most nutrient dense foods, "fertility...More Info