While it's true that
female mosquitoes need blood for proper reproduction, but a recent study by the
US Department of Agriculture shows that mosquitoes need sugar even more [1].
So, it follows that mosquitoes seek out victims with higher levels of sugar in
their blood, which comes from higher levels of sugar in their diets.
Anecdotally, this
could explain my in-laws' situation. They've commented several times how he
always gets bit, and she doesn't. Well, he likes to eat a decent quantity of
sweets, whereas she tries to minimize sweets and carbs in her diet. Sally
Fallon tells of how, since cutting out sugar, she can be outside without any
chemical repellents and never be bothered [2].
So, if you're tired
of spraying toxic mosquito repellent on your skin and breathing the fumes, try
cutting back on sugar instead.
[2] Nourishing
Traditions, http://www.westonaprice.org/thumbs-up-reviews/nourishing-traditions