Because elevated insulin is one of the most relevant factors in being lean and healthy, a rational strategy is to follow a dietary plan that incorporates periods of not eating to help insulin stay low (please see this article for more information on the importance of insulin). This perspective immediately suggests that frequent eating is less effective than less frequent eating—indeed, three meals per day is better than six [1]—but are fewer than three meals better still? Very likely.
https://gethlth.com/what-does-intermittent-fasting-do-to-insulin/