Maternal stress and high-fat diet effect on maternal behavior, milk composition, and pup ingestive behavior

► Rat pups exposed to prenatal stress or HF diet consume more milk during postnatal week 1. ► Dams maintained on HF diet nurse their pups more in first postnatal week. ► Maternal HF diet results in higher fat and protein content of rat mothers' milk from postnatal days 10-21.