Eggs, Choline and Alpha GPC: Why the Numbers Are Not the Same

Eggs contain choline, but their total choline content is not the same as their Alpha GPC content. For instance, a large hard-boiled egg provides about 147 mg of total choline, according to nutrition data. Choline exists in several forms. Glycerophosphocholine, also called GPC, is one of them. It can be found in foods such as eggs, fish, milk, yoghurt and liver, but a food listed as high in choline is not necessarily high in GPC. There is also a measurement difference to note. Food databases may report the choline portion of GPC per 100 g of food, while supplement labels may state the amount of the full Alpha GPC compound per serving. Comparing these figures directly can be misleading. The key is to check what a nutrition number actually measures before comparing foods with supplements.

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