Nutrition Facts with Dr. Greger Deodorize from the Inside Out
Mar 12, 2026
Discussion of how what you eat can change body odor and the role of internal chlorophyll from plant foods. Explanations of how infection and inflammation alter scent. Findings that meat consumption can worsen underarm smell compared with plant-based diets. Examination of concerns around aluminum in antiperspirants, shaving, and potential links to breast tissue exposure.
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Deodorize With Chlorophyll Rich Salads
- Try eating a big salad daily to reduce body odor naturally through dietary chlorophyll.
- Clinical studies used ~100 mg/day of chlorophyll (≈ one-third of a bunch of raw spinach) to eliminate detectable underarm odors.
Inflammation Changes Body Odor Quickly
- We can literally smell inflammation on people shortly after it begins, making body odor a signal of internal immune activation.
- Experimental endotoxin exposure produced significantly more aversive body odor within hours, and worse smell correlated with greater inflammation.
Plant Based Diet Improves Armpit Odor Attractiveness
- Men smelled more attractive, pleasant, and less intense when on a no-meat diet compared with a meat-containing diet in a controlled crossover study.
- Pads taped to armpits after two-week diets were rated by 30 women; non-meat condition scored significantly better for pleasantness and attractiveness.
