Eating Meat Helps Humans Reproduce

A mother who eats meat and then breast-feeds her child may be helping the young one's cognitive and physical development. By breast-feeding, the child's brain is able to grow at a quicker rate and the child is able to wean off from breast milk much sooner, allowing the woman to have children faster. The evidence, which is based off the study of 67 mammalian species, reported that there a direct link between diet and how early the offspring could be weaned.

http://www.latimes.com/health/boostershots/la-heb-meat-eating-reproduction-20120420,0,2388092.story