Does Being Skinny Weaken the Immune System?
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4 min read
According to a 2018 review in the journal *Clinical Nutrition*, multiple studies suggest a U-shaped relationship between body mass index (BMI) and infection risk, meaning both underweight and obesity are associated with a higher risk of getting sick. The answer to "does being skinny weaken the immune system" is often yes, but this depends heavily on whether low weight is accompanied by nutritional deficiencies.
