Despite the wide variety of workouts available today, yoga is the most reliable and effective way of nourishing and toning one's body as a whole. help. Absolutely! Because who doesn't want a flat stomach that ultimately shows off your good health? As yoga tries to work deeply on the core and the whole body with each asana. Along with making the stomach strong, these will help in eliminating many stomach related problems like constipation, indigestion and bloating.