There's more to diets than just slimming down, if you eat certain foods your s3x life can improve too, some natural foods which will help you in the bedroom are...
CHILLI- Capsaicin, the compund that gives chillies their heat, also releases endorphins in the brain and stimulates the nervous system to heighten arousal. Like chocolate, it gives a sensation of pleasure. DO NOT eat chillies or the seeds by themselves, use one or two chillies with your stirfry or whatever, do not eat the chilli by itself.
GINGER- Without been too graphic, ginger works by improving your circulation,which in turn helps blood flow to the gentials. Move over, ******, ginger is nature's own ******

Add it to a stir-fry or pop some in the juicer with your carrots and apples in the morning.
SOYA- A good source of protein, the "other green bean" is low in fat and contains phytoestrogens, which are said to combat PMT, and help relieve the symptoms of menopause. Try tofu or soya milk, or some yummy edamame (soya beans in their pods)
CHOCOLATE-It cheers you up,yes, but the phenylethylamine found in chocolate also gives you a euphoric feeling by releasing dopamine-the same chemical your brain produces when you have an orgasm. So have a cpl of chocolates or some chocolate mousee before hitting the sheets.
OATS- Aside from keeping you engerised all day-and all night- some studies suggest a bowl of porridge can increase your testosterone levels.
NUTS- Nuts ensure the vascular system stays healthy and help improve blood flow. The Omega 3 fatty acids (that's good fat) magnesium, folic acid and zinc also keeps your heart in top condition, which means you can go all night in the bedroom.

Nuts are a healthy alternative to chips or even rice crackers.
HONEY- Honey has a mineral called boron, which helps your body use the female s3x hormorne oestrogen. Honey's libido- boosting power has also been explained by the way it increases your energy levels.