My stomach is coming out day by day. ... how to reduce it and get a flat and healthy stomach? ?

IF a fat problem...: To help a tummy look flatter, one can do exercises to build very strong abdominal muscles. It will take a lot of work, and will burn off calories. One must not eat more calories than he burns off or he cannot lose fat. Helpful weight loss foods are natural foods that take time to chew but contain few calories. Examples include carrots, celery, and iceberg lettuce. Avoid sugars & simple starches.