Bad health is good business. The pharmaceutical industry knows that. But now bad health is turning out to be good business for the food industry as well. Food was always medicinal in traditional diets. But then diets changed. The food-medicine connection broke with changed lifestyles and eating habits. Now science and industry is rediscovering the traditional knowledge of medicine-food and the modern health food industry is becoming a lucrative business. But lack of regulations mean everyone from makers of vitamins and herbal medicines, to ketchup manufacturers are vying to be labelled healthy. But will this modern science of nutraceuticals be able to revive the diet-lifestyle linkage. Or will it only mean that we will all pop new pills -- this time with healthy ingredients extracted from nature -- and continue with junk food and stressed lives. What does this new science and life fashion hold for us? VIBHA VARSHNEY probes