WRONG. People who have lost significant amounts of weight know that making a lifestyle change is about so much more than calorie restriction and getting a gym membership. It's also a massive mental challenge that requires stamina, rational thought and emotional support. In other words, it's often a mind makeover, first and foremost.
Take it from people who know. Here are six pieces of advice from HuffPost readers who shared their own weight loss journeys for our "I Lost Weight" series. Let their wisdom (and amazing before and after pictures) change your mind about weight loss.