If you need yet another sciencey reason to have more sex consider this: sex releases oxytocin, and oxytocin helps keep you slim.

Forget eating salad and pounding on the treadmill – regular sex can help dieters keep slim.

On top of burning around 100 calories an hour, it also triggers the release of a hormone which may stop us overeating, new research suggests.

Oxytocin, dubbed the love or cuddle hormone, is released after sex to induce feelings of trust and affection, bonding couples together.

‘Oxytocin enhances prosocial and related behaviors. Increases in oxytocin tend to decrease appetite – especially the consumption of sweet carbohydrates,’ she said.

And that’s not all! Not only does your body produce its own oxytocin when you have sex, but wives also absorb oxytocin from their husbands’ semen — improving their health and mood.

Vaginal tissue is very absorptive. It’s richly endowed with blood and lymph vessels. Given vaginal absorptiveness and all the mood-elevating compounds in found in semen, Gallup, Burch, and SUNY colleague Steven Platek wondered if semen exposure might be associated with better mood and less depression. They surveyed 293 college women at SUNY Albany about intercourse with and without condoms, and then gave the women the Beck Depression Inventory, a standard test of mood. Compared with women who “always” or “usually” used condoms, those who “never” did, whose vaginas were exposed to semen, showed significantly better mood–fewer depressive symptoms, and less bouts of depression. In addition, compared to women who had no intercourse at all, the semen-exposed women showed more elevated mood and less depression.

So next time you’re feeling down or craving something sweet, grab your spouse instead of a treat!