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Reply To: Peanut Butter

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Peanut butter contains phosphatidylcholine, which restores mitochondrial respiration.

From Ray Peat’s article “Fats, functions, and malfunctions”:
The crucial mitochondrial respiratory enzyme, cytochrome c oxidase, declines with aging (Paradies, et al., 1997). Some lipids, such as a phosphatidylcholine containing two myristic acid groups, can support the enzyme’s activity (Hoch, 1992). Supplementing old animals with hydrogenated peanut oil restores mitochondrial respiration to about 80% of normal (Bronnikov, et al., 2010).