Is diet/exercise effective for preventing COVID-19?
The single best way to prevent COVID-19 is to get vaccinated and receive your booster shot when you are eligible. This is regardless of whether you already had COVID or if you are considered “low risk.
However, research on diet and exercise has been observed to lower COVID-19 risk and severity. (Note: this topic has very limited literature and is all observational. This article also does not directly discuss adiposity/obesity or supplements.)
Physical Inactivity = Higher Risk for Severe COVID-19 Outcomes
A recent study from researchers at Kaiser Permanente found that meeting the United States Department of Health and Human Services’ Physical Activity Guidelines for American was associated with reduced risk for hospitalization, ICU admission, and death from COVID-19.
Higher Diet Quality is associated with Lower COVID-19 Risk and Severity
A study done at Massachusetts General Hospital found that having a diet with more healthy plant-based foods (i.e. whole grains, fruits and vegetables) and lower intakes of refined grains, sugar-sweetened beverages, and animal protein foods was associated with lower COVID-19 risk and severity.
A General Note on Diet and Exercise
Beyond COVID-19, having a good diet and exercising regularly in general can help improve your health and reduce your risk for illness.
The National Institute on Aging suggests the following for a good diet:
- Eat plenty of fruits and vegetables
- Choose foods that are low in added sugars, saturated fats, and sodium
- Pick whole grains and lean sources of protein and dairy products.
The American Heart Association recommends at least 150 minutes a week of moderate-intensity exercise (e.g. a brisk walk) or at least 75 minutes a week of vigorous activity (e.g. sprinting).
By getting vaccinated as well as having a healthy diet and regular exercise, you can significantly reduce your risk and severity of COVID-19.
Last update: December 12, 2021, 07:05pm ET
Science review: HAY, BSL