Glucose Never Goes Away, Right?

There was a lot of really interesting work back in the 60s done at Harvard with real fasting experiments. You have inpatient subjects given nothing but water and minerals for 40 days. And it turns out that within about seven days, you'll be at a ketone level of five to seven millimolar. glucose will be down to three to four milligrams per deciliter. So even to your last day of life, if you're being starved to death, you still have glucose in your blood. It's kind of interesting that, like, what percentage of overall brain metabolism do you think is driven by lactate?"

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