What Blood Type Do Mosquitoes Prefer?

If you’ve ever felt like a walking buffet for mosquitoes while your friends remain bite-free, you’re not imagining things. Mosquitoes have preferences when it comes to their next meal, and your blood type might be one of the deciding factors. But what makes them pick you over someone else? Let’s dive into the science behind mosquito attraction.

What Blood Type Do Mosquitoes Prefer?

While mosquitoes seem to have a preference for certain blood types, there isn’t one they completely avoid. Research suggests that mosquitoes are generally less attracted to individuals with Type A blood, particularly when given the choice to feast on those with Type O blood.

But before all the A-positive readers start celebrating, keep in mind—blood type is just one of many factors that influence mosquito attraction.

Are Some Blood Types More Prone to Mosquito Bites?

Your blood type is determined by specific proteins (antigens) found on the surface of red blood cells. These antigens also sometimes appear in body fluids like saliva, making some people “secretors,” meaning mosquitoes might detect their blood type before they even bite.

Here’s how different blood types rank in terms of mosquito attraction:

Type O – The clear favourite. Studies show mosquitoes land on Type O individuals twice as often as those with Type A.

Type A – The least attractive option for mosquitoes, but not a complete deterrent.

Type B – Falls somewhere in the middle, with some studies suggesting a moderate attraction.

Type AB – Mosquitoes may prefer this type over A, but not as much as O.

Beyond Blood Type: Other Factors That Attract Mosquitoes

While blood type plays a role, it’s far from the only factor influencing mosquito behaviour. Here are some additional reasons why you might be a mosquito magnet:

Carbon Dioxide (CO₂) Emission: Mosquitoes are drawn to the carbon dioxide we exhale. People who breathe out more CO₂—such as those with a larger lung capacity, pregnant women, or individuals who are physically active—may attract more mosquitoes.

Body Heat & Sweat: Mosquitoes use heat sensors to locate their next meal. The warmer your body, the more appealing you are. If you sweat a lot or have a higher body temperature, you could be an easier target.

Skin Bacteria: The microbiome on your skin releases unique odours that can either repel or attract mosquitoes. Certain bacteria combinations make individuals more attractive to these pests.

Alcohol Consumption: Some studies suggest that consuming alcohol, especially beer, increases mosquito attraction. This might be due to the change in body temperature and chemical signals released after drinking.

Clothing Colour: Believe it or not, mosquitoes are visual hunters too. Dark colours like black, navy, and red make you more visible, increasing your risk of bites.

How to Keep Mosquitoes at Bay (Without DEET!)

Now that you know why mosquitoes might prefer you, here are some effective ways to stay bite-free:

Use DEET-free mosquito repellents formulated with natural ingredients like lemon eucalyptus oil, citronella, and tea tree oil—safe for your skin and the environment.

Wear light-coloured clothing and cover exposed skin when outdoors.

Stay indoors or use mosquito nets during peak activity hours (dusk and dawn).

Reduce standing water around your home to eliminate breeding grounds.

How to Keep Mosquitoes Away (No Matter Your Blood Type)

Since you can’t change your blood type, the best way to keep mosquitoes at bay is by using effective repellents. Many store-bought options contain DEET, which, while effective, can come with unpleasant side effects.

That’s why our repellent is 100% DEET-free, made with natural, skin-friendly ingredients to keep mosquitoes away without harsh chemicals. Whether you’re a mosquito magnet or naturally less appealing, staying bite-free shouldn’t mean compromising on comfort or safety.