I recently spotted a greeting card that said “I’m on two diets. There is simply not enough food on one”. Within the humorous message resides a very real truth… dieting means never eating enough. No matter how many new, creative ways that diets are re-packaged and marketed, the point is always to restrict nutritional intake and energy below what the body actually needs to sustain itself. While the multi-billion dollar diet industry promises a better body, better health and indeed a better life we now know that long term weight loss is not achievable for the vast majority of people.