Egg

What it is: Eggs are the edible reproductive cells (ova) of birds, most commonly chickens, and are recognized as a whole food rich in high-quality protein, choline, B vitamins such as B12, vitamin D, selenium, and healthy fats. Egg yolks are especially high in choline, a vital nutrient for neurological health.
What it does: Choline from eggs is used by the body to produce acetylcholine, a neurotransmitter that supports memory, attention, and overall brain function. Eggs also contribute to nerve function, energy metabolism, and tissue repair through their protein and B vitamin content.
How it is used: Egg-derived nutrients are often used in cognitive support and brain health supplements, as well as energy and general wellness formulas, due to their ability to promote memory, focus, and cellular health.
Natural sources and supplement forms: Naturally occurring in the yolk of chicken eggs, egg nutrients appear in supplements as dried whole egg, egg yolk powder, or isolated egg phospholipids, with a focus on delivering concentrated choline.
Why it appears in supplement formulas: Extracts from eggs are included for their choline content to help support cognitive performance, memory, and neurological wellness, as well as to provide complete protein and key vitamins.
What to know before use: Anyone with an egg allergy should avoid supplements containing egg-derived ingredients due to the risk of allergic reactions.