There is a strong positive relationship between the level of income and the demand for greater food variety. As incomes increase, demand for higher value foods such as meat, milk and eggs rises, compared with food of plant origin such as cereals. This is because livestock products are not only tasty and provide high-value protein but are also important sources of a wide range of essential micronutrients, in particular minerals such as iron and zinc, and vitamins such as Vitamin A. (Read More)
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