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We speak to Cynthia Graber and Nicola Twilley of Gastropod. 

Calories consumed minus calories burned: it’s the simple formula for weight loss or gain. But our mistaken faith in the power of this seemingly simple measurement may be hindering the fight against obesity. We are just beginning to understand that a calorie isn’t just a calorie. What effect do differences in height, body fat, liver size, metabolism, and other factors have on energy consumption? How does our microbiome influence our metabolism and body weight? Does the future lie in personalised nutrition?

Hosted by Dr Buddhini Samarasinghe and produced in partnership with Science on Google+. Recorded on 19 February 2016.

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