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I am grateful to Science News for having achieved with your words what no doctor has managed in the past 20 years: cured my diabetes. I now find that my average blood sugar falls safely within the range 80 to 240 milligrams per deciliter cited in the article as normal. On the strength of this good news, I’m going out for a hot fudge sundae. I’ll be looking forward to a future article on blood cholesterol. Nicholas S. Thompson
New Braintree, Mass.
Our article’s statement that normal blood sugar falls between 80 and 240 milligrams of glucose per deciliter of blood was not correct. That’s the range in which the brain seems to function normally, according to the researchers whose work the article discussed. They used this range to design their study. Normal blood sugar readings are generally considered to fall between 70 and 140 mg/dl, although readings up to 180 mg/dl are considered safe by some physicians. –N. Seppa