Eggs are one of the most nutritionally complete foods available — containing all nine essential amino acids, along with choline (critical for gut lining integrity and brain function), lutein, selenium, and vitamins A, B2, B12, and D. Pasture-raised eggs have significantly higher omega-3 and vitamin D content than factory-farmed equivalents. The yolk is where almost all the nutrition lives.
Why it matters
Complete Protein
All 9 essential amino acids in highly bioavailable form — the reference protein for nutritional science.
Choline for Gut Lining
Choline builds phosphatidylcholine — essential for maintaining the protective mucus layer in the gut.
Vitamin D Source
One of the few foods naturally containing Vitamin D — critical for immune regulation and gut integrity.
B12 Rich
Essential for nerve function, DNA synthesis, and gut bacteria regulation.
How to eat it
Eat the whole egg — the yolk is not the enemy. Soft-boil or poach to preserve the most nutrients. Scramble gently on low heat with olive oil. Pair with kimchi or sauerkraut for a probiotic-protein combination. Two eggs provides roughly 12g of complete protein — alongside choline and B12 that plant foods cannot easily replicate.
Dietary choline from eggs is directly used to produce phosphatidylcholine — a key component of the intestinal mucus layer that protects the gut lining. Choline deficiency is associated with fatty liver disease and increased intestinal permeability.
Source: Zeisel & da Costa, Nutrition Reviews, 2009
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