Weight loss is a complicated affair that prompts many people to choose medical solutions over lifestyle changes. Even the highly motivated end up slipping back into their old ways when they don’t have the right tools. Often, the mistake is over-exercising and restricting food intake, as both habits can do more harm than good over time. One slimmer named Katie Dunlop lost 45lbs (around 3st) after ditching these mistakes. She claims fad diets were also hindering her progress. Sharing her weight loss strategy on YouTube, the fitness enthusiast believes these common mistakes could be slowing down …