Why Is My Body Not Using Ketone Bodies All The Time?
There is no scientific evidence that ketones are a better source of energy than glucose for the brain. If that were the case, evolution would have lead to chronic ketosis. Your liver only produces ketones when carbohydrates are in short supply and fat is available. This is a physiologic system designed to deal with fasting or during periods when plant-based foods aren’t available in amounts needed to meet the brain’s needs. Ketones are also elevated in obesity and diabetes. Only certain regions of the brain can use ketones. They can supply up to 70% of the brain’s energy needs. You still need some glucose to fully fuel the brain. High levels of ketones may produce ketoacidosis, a dangerous condition sometimes seen in untreated diabetics. There are some situations where ketones may have a neuroprotective effect following brain damage. Ketones may also be useful for people having epilepsy. There aren’t any studies showing that these benefits extend to brains that haven’t been injured or stressed. You can get a fuller discussion here: Clinical review: Ketones and brain injury and here: The fat-fueled brain: unnatural or advantageous? and here: There don’t seem to be any st Continue reading >>