During the period 1965 to 1971, research foregrounded nutrition as a driver of brain metabolism and development. Investigators connected dietary components, energy balance, and cerebral function, highlighting how carbohydrate intake, insulin, and plasma tryptophan modulate brain serotonin and behavior. There was also a focus on how malnutrition and prenatal nutrition alter myelination and brain growth, signaling lasting implications for developmental neuroscience and public health. The cross-period emphasis on linking cerebral perfusion, metabolism, and neuropathology seeded early mechanistic bridges that informed subsequent neurovascular and neurocritical-care research.