Let’s take the example of Tokelau, an island located off the coast of New Zealand. In 1968, they were granted permission to emigrate to their nearby state.

Their normal diet consisted of 50% fat and roughly eight pounds of sugar per year. 3 percent of the men were diabetic at this point.

By 1982, sugar consumption increased to 55 pounds per year. Then, 11% of the men had diabetes, and others started developing new diseases.

In 2014, they had the highest rate of diabetes in the world — 38%. Once they moved to a sugary diet, the rate of severe diseases started to increase among the population.