On top of this, long term studies of diabetes patients shows that the increase of insulin, which they have to either inject or get pumped into them, increases their body fat. (liftingrevolution.com)
Long term studies do show, however, that there are lifelong benefits. (babycenter.com)
And longer term studies show that the weight comes back in most people after 2 - 5 years. (idmprogram.com)