LONGEVITY with Nathalie Niddam#417: Depression and Weight Gain In Kids & Adults | A Long Term Post-COVID Problem & How To Reverse It With Dr. Cynthia KellerWhen tryptophan makes you worse
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She explains why very sick patients may feel worse—tryptophan shunted to kynurenine/quinolinic acid—and reframes a bad reaction as a cheap diagnostic that mitochondria need priority care.