Figure 1.

Glucose and ketone levels over the course of three meal eating patterns. (A) The standard meal pattern of three meals daily does not result in an appreciable rise in ketone levels. (B) The 5:2 or alternate-day fasting pattern allows ketones to rise during prolonged fasting, followed by suppressed ketones during the typical feeding day. (C) When meals are compressed to a 6-h period each day, ketones are able to rise during the time between feeding periods. From Anton et al., Obesity 2018: 26(2): 254–268; used by permission [16].