Eating six small meals a day will not raise the metabolic rate any higher than three square meals…or seventeen for that matter.
The hunger one gets from eating frequently is NOT the metabolism revving into high gear, it is a powerful hunger-stimulating hormone known as ghrelin.
Upon completing a carbohydrate enriched meal, basal levels of insulin will rise. The subsequent fall in insulin causes ghrelin levels to elevate.
Insulin and ghrelin work antagonistically to one another, much like a sea-saw effect.
Ghrelin primes your strict eating schedule and is the culprit behind “hangryness.”
Sticking with a rigid eating schedule triggers a rise in ghrelin prior to mealtime, bringing about extreme hunger pangs.
Besides those ravenous cravings, missing scheduled meals also causes sluggishness and irritability.
The body adapts to what you give it.
The more frequently you eat, the more frequently you want to eat.
The less frequently you eat, the less frequently you want to eat.
One of the main reasons why dietary fat creates such a satiating effect on the ketogenic diet, is largely due to the minor secretion of insulin.
If insulin doesn’t rise as high, it won’t drop as low. Since insulin won’t drop as low, ghrelin won’t rise as high and you won’t feel as hungry.
It is not the metabolic rate revving into high gear with all those frequent carb feedings, it’s good ol’ghrelin.