In theory, eating a lot of fish, or taking fish oil supplements rich in the essential fatty acids the brain requires can possibly correct this nutritional deficiency and improve mental health.

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The mothers will not escape problems from nutritional deficiency.

ECONOMIST: Arab diets

Or think about sneakers and athletic apparel that are being made intelligent, with capabilities to mine your sweat for insights into your biophysical and biochemical well-being or warn of the possibility of a potential health problem or nutritional deficiency.

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If 20 years later the family gets a more plentiful yet still poor diet (with a lot of calories but not many micronutrients, such as iron or vitamins) she will become overweight or obese, while her children will suffer nutritional deficiency, such as anaemia or blindness.

ECONOMIST: Arab diets