As with most health goals , there is a healthy and an unhealthy way to gain weight. Sitting on a couch, snacking on pizza , potato chips , and beer for a few weeks will certainly lead to some weight gain, but not the healthy type you want. As we can see from modern society , becoming overweight or obese is easy, but gaining weight in a healthy, controllable way takes more effort and determination. There are many health risks associated with an unhealthy weight gain, such as high blood pressure , cardiovascular diseases , diabetes , low metabolism , gout , and a general decrease in overall health. That being said, having a body weight that is too low can also be dangerous, resulting in hormonal issues, bone density loss, and organ malfunction . Sometimes loss of appetite may also cause weight loss . Research suggests that umami flavor increases satiety and enhances appetite.