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Yes, I understand the difference between simple and complex carbs. But Keto limits even complex carbs. I have been doing a shit ton of research on this. I wouldn't be doing it if it weren't reducing my issues. Again, according to AI:
 
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The process of converting fat into glucose is called gluconeogenesis, and it is not possible in humans. Instead, when fat is broken down, it produces fatty acids and glycerol. Glycerol can be converted into glucose through gluconeogenesis, but fatty acids cannot. Therefore, while fat can be used for energy production, it does not directly contribute to the body's sugar levels.
 
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gluconeogenesis is not only possible in humans, but it is a vital metabolic pathway for maintaining blood glucose levels, especially during periods of fasting or starvation. While it's a ubiquitous process in many organisms, in humans, the primary sites for gluconeogenesis are the liver and, to a lesser extent, the kidneys.
 
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You said fat in the brain can cause dementia. didn't you? My point is, I do not believe keto is going to negatively impact my brain. I am not carnovore. Just keto,
 
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Alternative Energy Source: Our bodies primarily run on glucose (sugar) from carbohydrates. When glucose stores are low (e.g., during fasting, prolonged exercise, or a low-carbohydrate diet), the body shifts to breaking down fat for energy. Ketone Bodies are Byproducts: This fat breakdown process produces acids called ketones (or ketone bodies) in the liver. Fueling the Brain and Body: Ketones can then be used as a backup fuel source, particularly important for the brain which usually relies heavily on glucose.
 
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I agree with you. It was okay 100 years ago when we burned the sugar by working a lot physically. We in the West, largely have sedentary lives.