I try to eat a healthy balanced diet all the time, so I know I get all the vitamins and minerals I need without having to take supplements. Recently, I heard the suggestion that getting extra B vitamins, especially B1 (thiamine), deters bugs and mosquitoes. This idea made me hopeful, but I approached it with a healthy dose of skepticism.
While getting enough B vitamins is great for your health, I'm sorry to say that mosquitoes will still find you just as tasty, even if you up your dosage. One thing to think about is that B vitamins are water soluble. This means that they are not stored in the body and must be taken every day. Even if you take extra, your body can only handle a certain amount, so you'll just end up peeing it out, which won't deter mosquitoes and other pesky bugs.