Those with pica compulsively consume nonnutritive substances like sand and dirt, and even animal droppings and insects.

Their main function is to consume microorganisms, other foreign substances, and old, dying cells.

A large number of adolescents who binge drink also consume other psychotropic substances.

A biofuel cell in theory can work without limits because it consumes substances that come from physiological fluids, and are constantly being replenished," said Dr Cosnier.

Continue reading the main story A bio fuel cell in theory can work without limits because it consumes substances that come from physiological fluids.

They should not drink alcohol or consume other intoxicating substances (for example, narcotics).

Others are sold to restaurants to consume grease and substances that cause odors.

Shamans consume hallucinogenic substances in order to induce a trance.

Geophagia is a form of pica in which the person consumes earthly substances such as clay, and is particularly prevalent to augment a mineral-deficient diet.

Ortiz also confessed to have experienced "financial problems" after he was banned for playing professional football for two years after consuming illegal substances.