Foods High in Cystine
Cystine is formed from two linked cysteine molecules and contributes to protein structure, including in hair and skin.
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Key takeaways
- Seeds Cottonseed Meal has the most cystine per 100 g among whole foods, at 1.29 g.
- Per 100 calories, Egg White ranks first at 0.58 g.
Top sources per 100 grams
The most concentrated sources by weight. Fortified products, supplements, and spices are excluded so the ranking reflects commonly eaten foods.
Top sources per 100 calories
The same catalog ranked by nutrient density per calorie, which is useful when working within a calorie budget.
Food values compiled from public nutrition databases and published research. Rankings exclude fortified products and supplements to reflect whole foods.