Personal trainer says common Slimming World mistake 'makes you fat'

The fitness guru said people can make a big mistake (Image: Getty) A fitness expert has issued a stark warning about the potential pitfalls of Slimming World , suggesting it could inadvertently lead to weight gain. Nathan Joseph, a personal trainer with a strong following on TikTok , has claimed that while weight loss programmes like Slimming World promise much, they can also "make you fat" if you're not careful. He argues that the desire to lose weight often drives people to diets without considering the broader aspects of health .

He highlighted a peculiar rule within Slimming World's system where bananas are considered free of "syns" when eaten whole, but once mashed, they suddenly accrue this negative value. In his video, Nathan explained: "When they tell you this is bad, there's no way you're going to go near sweets, chocolate or crisps. You're going to be in a really big calorie deficit which means, whilst you are doing Slimming World, it's got a very good chance of making you lose weight.

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