Nobel laureates have figured out the eight investments that will help the planet most. No. 1: micronutrients.
On the eastern edge of Kolkata, India, Dulu Bibi, a 25-year-old mother of four, worries about the cost of treating her two sick boys. Her husband earns 80-90 rupees ($1.90) a day. The family's basic diet is low in the essential micronutrients that children need to thrive. Dulu's two sons, age 3 and 1, are weak and feverish, lack appetite, and cry a lot. "If I have to spend 150-200 rupees on medicine," she asks, "what will I eat and feed my children with?"
Dulu's story is heartbreakingly common in the developing world: 3 billion people survive on diets that lack micronutrients such as Vitamin A and Zinc, and are at increased risk of illness from common infections such as diarrheal disease, which kills nearly 2 million children annually.
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