Obesity Nearly Triples Long COVID Risk in Men, Study Finds

A new study has revealed a strong link between obesity and long COVID in men. Researchers found that those with a body mass index (BMI) of 30 or higher face nearly three times the risk of prolonged symptoms after a SARS-CoV-2 infection. The findings also highlight waist-to-height ratio as a key factor in increased vulnerability.

The research showed that 26% of men with central obesity developed long COVID, compared to just 14% of non-obese men. Central obesity, measured by waist-to-height ratio, raised the risk by 2.18 times. For men with a BMI of 30 or above, the likelihood of long COVID jumped by 2.8-fold.

The study was part of broader research efforts at Austrian universities. While the obesity findings were not directly linked to the named studies—led by Thomas Pieber (Pro-MetAge aging study at MedUni Graz), Paul Plener and Tobias Dienlin (Mental Health Days student well-being study), and Dr. Anton Glieder (industrial yeast biogas study at TU Graz)—they add to growing evidence on obesity’s role in post-viral complications.

The results confirm that obesity significantly raises the chances of long COVID in men. Both BMI and waist-to-height ratio serve as clear indicators of higher risk. Health officials may use these findings to better identify and support at-risk groups during recovery.