Weight is really just genetic

This is like saying, "Why try to avoid UV when cancer is just genetic anyway."

"The Bottom Line: Healthy Environments and Lifestyles Can Counteract Gene-Related Risks

Having a better understanding of the genetic contributions to obesity—especially common obesity—and gene–environment interactions will generate a better understanding of the causal pathways that lead to obesity. Such information could someday yield promising strategies for obesity prevention and treatment. But it’s important to remember that overall, the contribution of genes to obesity risk is small, while the contribution of our toxic food and activity environment is huge. As one scientist wrote, "Genes may co-determine who becomes obese, but our environment determines how many become obese." (20) That's why obesity prevention efforts must focus on changing our environment to make healthy choices easier choices, for all."

from: http://www.hsph.harvard.edu/obesity-prevention-source/obesity-causes/genes-and-obesity/index.html
(the bold font is mine)

Why do we all even try to lose weight when in the end it is almost entirely genetic? Look at twins they are always the same weight +/- 15 ibs. They have done studies where twins were separated at birth and raised by seperate families. Researchers examined both their BMI and weight and they are always almost exactly the same weight as their twin not taking after the family that raised them.

Almost all people who are more then 30ibs overweight over eat because it is there drug of choice. Humans seek addictive behavior and whether it is drinking, smoking, prescription drugs, marijuana, or just eating its all the same. If you overeat you need to recover just like an ex alcoholic does.