When it comes to our brains, choline is a nutrient you certainly don’t want to skimp on. “Choline is a building block for a special category of fats called phospholipids found in cell membranes and the nerve chemical acetylcholine , which regulates memory,” says Somer. “In fact, Alzheimer’s disease is characterized by an underproduction of acetylcholine,” she adds. Findings published in the American Journal of Clinical Nutrition suggest that a greater dietary intake of phosphatidylcholine, a form of choline, is linked to a lower risk for dementia and enhanced cognitive performance. And if you are a mom-to-be you want to make sure to get sufficient amounts of choline, since evidence  suggests it can benefit infant brain development. 

Somer stresses that although the body manufactures choline with the help of other nutrients, such as folic acid and vitamin B12, sometimes it doesn’t produce enough to maintain normal brain function. That’s where eggs can lend a big assist. According to the National Institutes of Health (NIH) , eggs, more specifically the yolks, are just about the richest source of choline in the supermarket, second only to beef liver. A single egg delivers about 30 percent of the daily requirement for brain-benefiting choline. The key source of phosphatidylcholine in the diets of participants of the aforementioned study were eggs. And people who regularly eat eggs typically take in twice the amount of choline as those who don’t consume eggs, per a study in the journal Nutrients .