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John Waelti: A weighty issue - changes, choices and health
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Food-related issues are in the news lately, reminding me of a course I taught during my latter days as an agricultural economist. It was a course in world food problems. The text I used described four types of malnutrition: vitamin-mineral deficiency, parasite-related malnutrition, protein-calorie deficiency, and - you guessed it - "over nutrition," or malnutrition related to excess intake of sugars, fats, and salt.