How do ketones treat these symptoms? They do so by replacing glucose that’s lacking from the estrogen-deprived brain.
Dr. McCleary provides a fascinating discussion of what happens in the brain that results in hot flashes when estrogen is withdrawn after many years of constant exposure. During these years of exposure estrogen becomes intimately involved in the development of the shuttles that transport sugar into the brain cells. With estrogen present – as it is in the premenopause years – these shuttles transport about 40 percent more sugar into the brain cells than would be transported without the estrogen. When the estrogen goes away at menopause, the shuttling of sugar into the brain cells decreases, and the brain cells become a little starved for energy. Dr. McCleary explains how the hypothalamus responds to this starvation by
stepping up the release of norepinephrine [adrenaline], which acts to raise the level of sugar in the blood, to raise the heart rate, and to raise the body temperature. The hot flash, then, is a specific outward sign of the brain’s trying to protect itself from blood sugar starvation.
Long time readers of this blog will know that ketone bodies are water-soluble fat breakdown products that can pinch hit for glucose in the brain and other tissues. Dr. McCleary shows how ketones do this to prevent hot flashes, and he even gives a recipe for a ketone cocktail to provide even more ketones to feed the hungry brain that isn’t getting enough sugar.