What foods do not contain cysteine?
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5 min read
Cysteine is a non-essential amino acid, meaning the body can typically produce it from methionine, another amino acid. A cysteine-free diet is virtually impossible, but a low-cysteine diet is achievable, and the foods with negligible amounts are often plant-based, specific fats, and certain sweeteners. This guide explores which food groups are lowest in cysteine for those following special dietary protocols.