New research is being done, and they are finding that weight gain may be your body's best defence for fighting off disease, insulin problems and maybe even toxins. I found this video from TED's Talks very interesting.
Peter Attia: What if we're wrong about Diabetes?
I found it interesting that he has found that people that do not gain weight end up with more problems associated with Diabetes, than those that do gain weight. As they have found in other studies, being in the over-weight category is the healthiest place for your body to be, as it deals with stresses and illnesses better.