Team:Hong Kong HKUST/test16

Worldwide obesity has nearly doubled since 1980, while in 2008, more than 1.4 billion adults, 20 and older, were overweight.

In particular, many low- and middle-income countries face “double burden” of under-nutrition and obesity. Rates of malnutrition is much higher in low income countries, while there is a greater exposure to high-sugar, high-fat, high-salt foods which are low in cost and nutrients. Such dietary patterns result in low levels of physical strength and sharp increase in childhood obesity with under-nutrition existing side-by-side.