Your urine often comprises trace amounts of ketones, which provide energy. When blood plasma levels are above 0.1-0.2 millimoles per liter, ketones appear in the urine. High levels of ketones can ...

Scientists have long considered ketones (a fundamental chemical class) and esters (molecules formed when an acid reacts with an alcohol) to be locked treasure chests of possibilities. Ubiquitous ...

As fats are broken down, acids called ketones build up in the blood and urine. Ketones are poisonous in high levels. This condition is called ketoacidosis. Blood glucose levels rise (usually ...