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Long-term moderate calorie restriction (25% reduction) significantly reduces circulating inflammatory markers (CRP, TNF-α, WBC, leptin) in non-obese adults without impairing cell-mediated immunity.

If you are a healthy, non-obese adult, reducing your daily calorie intake by 25% for two years significantly lowers your systemic inflammation (a key driver of aging and chronic disease) without weakening your immune system. Ensure you meet micronutrient needs, potentially with supplements, to support this long-term change.

StrongSupportsVERY_HIGH confidence
long-term moderate CR without malnutrition induces a significant and persistent inhibition of inflammation without impairing key in vivo indicators of cell-mediated immunity.
Simin Nikbin Meydani et al. · Aging · 2016

Why this rating

Multi-center, randomized controlled trial (RCT) with a large sample size (n=218) and long duration (24 months).

Source

Long-term moderate calorie restriction inhibits inflammation without impairing cell-mediated immunity: a randomized controlled trial in non-obese humans

Simin Nikbin Meydani et al. · Aging · 2016

DOI 10.18632/aging.100994

rct · n=218Cited 223×
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DOI resolved against Crossref · corpus check 2026-06-10

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