London Nutritionist Yvonne Bishop-Weston looks at Victoria Beckham's Posh Spice Girl weight loss diet program and weighs it up against expert weight loss know how. Are seaweed shakes for wackos or weightwatchers?

Who would you trust? The organisations that are protecting a dairy industry that is worth $70-billion a year in the USA alone? or health and nutrition experts and vegan charities who are trying to create a world where their free, healthy, ethical advice is no longer needed and they are out of a job?