If you’re looking to lose a bit of weight, it’s easy to get lost in the complex and often contradictory health advice you can find online, from the fad diets, to the extreme exercise regimes. 

But what actually works? To answer this and much more, we’re joined by Dr Adam Collins, Associate Professor of Nutrition at the University of Surrey. He unpacks the science-backed core principles of weight loss, why losing muscle alongside fat can be an issue, and what actually happens in your body during a calorie deficit. 

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