SunnyExpat
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- Type of diabetes
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- Tablets (oral)
Just like to point out that this may be true in the context of low carb/moderate fats diet, but those on ketogenic diet and striving to be keto adpated would view this a little differently...because they believe that eventually even the brain will be keto-adapted.
http://www.ketotic.org/2012/05/keto-adaptation-what-it-is-and-how-to.html
"When glycogen runs out, you start producing ketones, and some are excreted in the urine. This is easy to measure, and some keto dieters use it to know if they are hitting a low enough level of carbohydrate restriction. This also marks the beginning of the second stage of keto-adaptation. Ketones are now becoming available for fuel, but they haven't yet risen to their stable adapted level. There is an interesting interplay between ketone use in the muscles and the brain. When ketone levels are low, the muscles tend to use them directly for fuel, but as levels increase, the muscles use them less, turning to fat for fuel instead. The brain, on the other hand, uses ketones proportionally to their concentration in the blood. This means that at low levels of ketones, the brain's supply is not much affected, because the muscles intercede, but above some threshold, the brain's supply rapidly becomes much higher. At this point, the brain can rely on ketones, and since it is no longer susceptible to running out of fuel, the need to eat frequently throughout the day to maintain mental function disappears. The muscles in turn now rely on fat: they finally have access to a virtually unlimited supply of energy, which is particularly valuable for athletes."
I've seen that before.
I've always wondered, where do athletes store the ketones?
Most sports, the body has reserves so when blood sugar goes low, the liver dumps, and can be quickly replenished, then in turn replenished from a high energy food.
Ketones are converted from fat, so does that mean any sudden impact sport has a massive dip while the body converts fat into ketones again, to 'restock' the blood as it were?
So although there may be a massive stockpile of fat reserves to draw on, how does it help, unless it's for a low impact sport, that doesn't require much impact.
Ie, is it ok for a marathon runner, but no use for a power lifter?