Obesity is already the most common form of malnutrition in most countries. Cases in children have quadrupled in three decades and in the adults, have almost tripled.

Malnutrition poses a risk of premature death and obesity is also a risk factor for diseases such as cancer or diabetes and hypertension, a precursor, in turn, of cardiovascular diseases. In the United States, obesity rates of 33% in men, for example, is a paradigm of the expansion of the high-income areas of the world.