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NutritionFacts.org Video Podcast

Friday Favorites: Do Garlic, Beer, Bananas, and B Vitamins Really Repel Mosquitoes?

NutritionFacts.org Video Podcast

Michael Greger, M.D. FACLM

Nutrition, Alternative Health, Health & Fitness

4.8951 Ratings

🗓️ 6 March 2026

⏱️ 11 minutes

🧾️ Download transcript

Summary

Garlic, beer, bananas, and B vitamins are put to the test as repellents for mosquitoes and ticks.

Transcript

Click on a timestamp to play from that location

0:00.0

A few weeks ago I released videos on Diet versus natural repellents,

0:05.0

that we can apply to our clothes or skin.

0:07.0

But can the things we eat also have a repellent quality?

0:12.0

No word yet on vampires,

0:15.0

but we do have a bit of incense on garlic and other bloodsuckers.

0:19.0

Check it out. Are some people just more attractive to mosquitoes than others?

0:34.6

Apparently so, as identical twins are most likely to be similarly tasty

0:39.3

compared to fraternal twins who only share 50% of their DNA, demonstrating an underlying

0:44.8

genetic component that can be sniffed out by mosquitoes, although it's not clear it's because

0:50.4

some people smell better or other people just smell worse.

0:53.8

We know pregnant women are twice as attractive to malaria mosquitoes, and also that mosquitoes

0:59.1

are attracted to sweat.

1:01.1

Human sweat contains components that are attractive to anthropophilic, meaning human-loving,

1:06.0

mosquitoes.

1:07.7

The unique composition of human sweat appears to explain its tantalizing effect,

1:12.6

though sweat from some body parts are evidently more tantalizing than others, skin emanations

1:17.8

collected from armpits were less attractive compared to hands or feet. Here's the graph.

1:23.5

They think the difference may be caused by deodorant residues, since in a subsequent experiment, volunteers were asked to avoid using skin care products for five days,

1:32.3

and after that, no differences were detected.

1:35.6

The creepiest bit of research I found was this.

1:39.7

The parasites that caused the mosquito-borne disease malaria,

1:43.9

which kills hundreds of thousands

...

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