The distinction between simple weight increase and hormone weight gain is significant. Most of the time, a person can identify the reason(s) for their additional weight gain; often, eating too many unhealthy foods and living a sedentary life are to blame. Hormone weight gain is distinct from other types of weight gain in that the individual is often just as active and hasn't made any dietary changes, yet they are still gaining weight. The quantity of hormone-induced weight gain can occasionally be shocking.