Many people successfully improve their entire bodies, including their abdomens, using diet and exercise. However, this approach isn't effective for everyone, especially those who have sagging skin in addition to unwanted fat and weakened muscles. Surgical excision is generally the only option for reducing sagging skin. With time and excessive stretching brought on by pregnancy or weight gain, skin loses its elasticity, reducing its ability to “bounce back” when the weight is gone. Therefore, although working out can reduce fat and tone muscles, it can't adequately resolve the issue of extra skin.