Stomach fat by ayurveda can be reduced. Ayurveda over the years have been telling people from all around the world about its benefits. Anyways you need to do regular exercises and give your body the stretch it requires everyday if possible. Having regular sex also is a form of physical exertion. Have honey regularly. Avoid junk foods and also avoid sleeping in the afternoons as it does not benefit your body. Eat more of wheat than rice. Also over all these things consult an ayurveda doctor for more help on medicines for reducing stomach fat.