Insulin acts as a vital signaling molecule in the brain that supports the growth and survival of nerve cells and communication between them, all of which are important for memory and may help protect against Alzheimer’s disease.
The study documented that, after a 16-week course of peanut consumption, brain insulin responsiveness improved in a cluster in the right hemisphere, encompassing parts of the lingual gyrus, hippocampus and parahippocampal and posterior cingulate gyri, which are brain regions involved in memory.