蜜芽传媒

More than a billion people around the world are overweight, and there's talk of a global obesity epidemic. For public health officials, it's cause for grave concern; for the multi-billion dollar diet industry, it's a source of fat profits. HARDtalk's Stephen Sackur asks Karen Miller-Kovach, chief scientist at Weight Watchers International, if there is something fundamentally unhealthy about our growing obsession with diets and weight-loss?