When fasting what causes a persons breath to smell fruity?

The fruity smell of the breath during fasting is caused by a process called ketosis. When the body is deprived of glucose, it begins to break down stored fat for energy. This process produces ketones, which are chemicals that have a sweet smell. Ketones are released through the breath, urine, and sweat.

Ketosis can also cause other symptoms, such as fatigue, nausea, and headache. These symptoms usually go away after a few days as the body adjusts to fasting.

Ketosis is a safe and natural process that can help people to lose weight and improve their health. However, it is important to talk to a doctor before starting a fast to make sure that it is right for you.