I’m a mosquito magnet. I am one of those people that if I’m out on a summer evening, I will hear that unpleasant buzzing near my head and then an inevitable strike to bite my arm, leg, or any unexposed flesh. But why are some people magnets for mosquitoes while others rarely get bit? New research suggests your diet may play a role.
For most of us, a mosquito bite is a minor annoyance that causes the skin to swell and itch where the bite occurred. Some species of mosquitos can transmit diseases like malaria, zika, yellow fever, and dengue in many parts of the world. In fact, according to the World Health Organization, half of the world’s population is at risk for contracting malaria, and it accounts for some 627,000 diseases in 2020. With climate change, the threat mosquitos pose for transmitting diseases is increasing.
In addition to the color of clothes one wears and their body temperature, it is now well established that a person’s individual odors from their breath and skin are what drive mosquitos to bite. What impacts someone’s body odors includes physiology, pregnancy, genetic makeup, underlying infections, and skin microbiome. Since what you eat and drink can impact your respiration and skin microbiome, new research suggests that changing what you eat and drink can impact your attractiveness to pesky insects.
The human body produces more than 350 different volatile organic compounds. Of these VOCs, mosquitoes are more attracted to some and not attracted to others. Some of the VOCs studied that attract mosquitos include carbon dioxide, lactic acid (produced during exercise), acetone (released when in ketosis), ammonia, and other human-produced organic compounds.
Here’s a look into the research about dietary factors that may increase your attractiveness to mosquitos. Then, make sure to check out The Worst Eating Mistakes You’re Making at Your Labor Day BBQ.
Alcohol
A few studies show that drinking alcohol may increase bodily VOCs that attract mosquitos. A study published in the Journal of the American Mosquito Control Association reported that among 13 study participants, researchers measured biomarkers before and after drinking beer and found that the percent of mosquitos landing on individuals increased after drinking beer.
Another study published in PLOS ONE reported that beer consumption increased the mosquito attraction to the participating subjects. Researchers theorize that beer (and likely all alcohol) increases attractiveness by elevating body temperature and altering the VOCs in the body after drinking alcohol.
