Following recent photos of the dramatic weight-loss transformation by British pop star Adele the Sirtfood Diet has become a hot topic. The diet is based on eating foods that are high in sirtuin proteins which are said to 'activate' the body's skinny genes and boost weight loss, foods such as strawberries, kale, onions and even red wine. But what's the catch? Sarah Hanrahan from the NZ Nutrition Foundation discusses the diet's pros and cons.
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