Is ketosis natural?

"Repeat after me three times, ketones are not evil, ketones are not evil, ketones are not evil... OK, now that we have gotten that out of the way..."

-- Jeffrey Paul Krabb, MD

In general medical literature, ketosis is often defined as abnormally high levels of ketone bodies in the blood.

Meanwhile, ketosis -- but not ketoacidosis! -- naturally occurs:

• Every morning after the night fast
• During fasting and calorie restriction
• After intensive prolonged exercise
• As a result of a diet significantly higher in fat comparing tha in carbohydrates
• Early in ontogenesis