The U.S. Food and Drug Administration has proposed a new definition for what constitutes "healthy" food, taking a more holistic look at nutrition and food groups instead of focusing solely on a few vitamins, minerals and nutrients.
The proposal has provoked a mixed response from nutritionists, the food industry and public health officials, highlighting the thorny task of broadly regulating something as personal as an individual diet.
Nutrition science has evolved significantly since the FDA last defined "healthy" in 1994 — and so has the prevalence of obesity and diet-related diseases.
