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Question
I have been reading that several
studies have shown that a daily dose of cinnamon may
delay the onset of type II diabetes and help regulate
blood sugar levels of existing type II diabetics.
I’ve also heard that taking a half-teaspoon of
cinnamon a day can help to lower cholesterol.
-- Betsy
Answer
Some recent research does suggest
that cinnamon may have a beneficial effect on blood
sugar and may also help lower cholesterol, but the
study in question was small and its findings need to
be confirmed before we can start recommending cinnamon
to patients.
The news about cinnamon’s effect
on blood sugar and cholesterol came from a small study
in Pakistan. Results were published in the December
2003 issue of Diabetes Care. The study ran for only 40
days and included 60 patients with type 2 diabetes. It
showed that one, three or six grams of cinnamon daily,
divided into two doses (that amounts to between a
quarter of a teaspoon to 1 teaspoon a day), lowered
fasting glucose by 18 to 29 percent, triglycerides by
23 to 30 percent, LDL cholesterol by 7 to 27 percent,
and total cholesterol by 12 to 26 percent.
Cinnamon’s effect on blood sugar
is believed to be due to a proanthocyanidin, an active
ingredient that increases sensitivity of receptors to
insulin.
A word of caution: cinnamon in large
doses may be toxic, so don’t assume that if the
relatively small amounts used in the study help,
larger amounts will work better. There’s also the
possibility that adding cinnamon to your diet will
change the dose of medication you need, so you should
monitor your blood sugar carefully.
As for cholesterol control, the
effects seen in the Pakistani study don’t equal
those of better-studied statin drugs. So if your
cholesterol is high and you’re taking a statin,
don’t assume that you can substitute cinnamon. The
results of the Pakistani study are very interesting,
but we need to know more. In the meantime, there’s
no harm in sprinkling cinnamon on your oatmeal or
using it in cooking.
By
Andrew Weil, M.D.
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