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This article describes attempts to use ketones as a substitute for glucose when it’s unavailable to the brain because converted fats can’t penetrate the brain. Wouldn’t it be simpler to feed or inject glucose directly?

Oliver H. Winn
Corona del Mar, Calif.

The researchers who conducted the study say that giving glucose might help in some cases, but the conditions discussed in the article involve a defect in glucose metabolism .–B. Harder