Janku F, Huang HJ, Angelo LS, Kurzrock R
Some researchers adjust timing or escalation speed based on body weight
ISSN 1573-6903
doi:10.1021/acs.chemrev.7b00205
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Other Dietary Sources Worth Noting While concentrations are considerably lower than in mushrooms, ergothioneine can also be found in: Animal products: Liver (especially kidney and red blood cells contain moderate amounts) These levels reflect the ergothioneine animals consumed from their own diets Legumes: Black beans, kidney beans, and red beans (especially when grown with mycorrhizal fungi) A 2023 study found black beans showed up to 72 times more ergothioneine when grown with beneficial soil fungi [2] Grains and fermented foods: Oat bran and wheat (particularly when cultivated with specific soil fungi) Tempeh, natto, miso, kimchi, and sauerkraut contain small amounts Spirulina contains relatively high amounts compared to other non-fungal sources Typical dietary intake ranges from 5-20 mg per day depending on mushroom consumption patterns