The alkaline diet is a diet fad that started gaining popularity in around 2010, based on the notion that it's possible to alter your blood pH through a change in diet to make it more alkaline, receiving numerous health benefits. There is no scientific evidence whatsoever for the alkaline diet and there is no connection between the foods the proponents recommend and the actual pH of those foods. This craze is fueled by the fact that acidity and alkalinity are chemical concepts that people are likely to remember from school. In practice, the diet follows mainstream dietary advice mixed with high amounts of nature woo. Once someone has been convinced consuming alkaline substances is beneficial, that opens the door to selling them the hard stuff: coral.