This food compound may help vaccines work better in older adults
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21 July, 2026
A naturally occurring compound found in foods such as wheat germ, mushrooms, and aged cheese may help older adults build stronger protection after vaccination. In a small pilot trial, researchers gave spermidine supplements to adults over 65 following their third COVID-19 vaccine dose. The biggest improvements appeared among people whose immune systems initially responded poorly, with higher antibody levels and stronger activity against several variants.
