Useful tip - if you do like Marmite, and you start regularly eating it a couple of weeks before an exotic trip, you tend to get left alone by mosquitoes!

The evidence for this is purely anecdotal, but I have tried the experiment on quite a few occasions (The two alpha males in our family love Marmite, the two ladies hate it!) On holiday (vacation to our dear US friends!) in Kenya, father and son 2 bites each, mother and daughter 21 and 27 bites! We are convinced that the scent of Marmite in your bloodstream is not attractive to your mozzie with delicate taste buds!

Marmite won!