Exogenous ketone acid), β-HB acts like a ketone, providing the body with energy in the absence of glucose. In fact, β-Hydroxybutyrate is the most abundant ketone in the blood during ketosis. Acetone is an organic compound with the formula (CH3)2CO and is one of the simplest and smallest ketones. It is synthesized from the breakdown of acetoacetate in ketotic individuals within the liver. Ketone salts are natural compounds, such as β-HB, that are mixed with sodium, potassium, or calcium to improve absorption and overall bioavailability. Ketone esters are synthetic compounds that link an alcohol group to a ketone body, producing an ester.
Nail polish and carbon disulfide may have adverse effects on reproductive health. These effects may including birth defects, low birth weight, miscarriage, and preterm birth. Nail polish formulations may include ingredients that are toxic or affect other health problems. One controversial family of ingredient are phthalates, which are implicated as endocrine disruptors and linked to problems in the endocrine system and increased risk of diabetes. Manufacturers have been pressured by consumer groups to reduce or to eliminate potentially-toxic ingredients, and in September 2006, several companies agreed to phase out dibutyl phthalates. There are no universal consumer safety standards for nail polish, however,