|
Supplementing the
diet with fatty acid conjugated linoleic acid (CLA) may be
beneficial to diabetics.
After an eight-week
study, diabetics who had added CLA to their diets not only
had lower body mass and blood sugar levels, but also lower
levels of leptin, a hormone that regulates fat levels. High
levels of leptin may play a role in obesity, which is one
of the biggest risk factors for adult-onset diabetes.
Previous studies
in rats have found that CLA delayed the onset of diabetes.
The current human study found the fatty acid improved the
management of adult-onset diabetes.
CLA is composed
of various fatty acid isomers, each of which can have different
effects. One CLA isomer, t10c12-CLA (which is sometimes called
the 10-12 isomer), played a role in controlling both body
weight and leptin levels.
The study involved
21 people with adult-onset diabetes, who took either a supplement
with a mix of rumenic acid, a primary isomer in CLA-containing
foods, and 10-12 isomer or a safflower oil supplement.
After taking the
supplements daily for eight weeks, fasting blood glucose levels
decreased nearly five-fold in patients taking CLA, compared
to patients taking the safflower oil.
Nine of the 11
people in the CLA supplement group had decreased blood glucose
levels, compared with two of the 10 in the safflower group.
This led researchers to suspect that the CLA was helping to
manage certain diabetes symptoms.
Researchers say
that the ideal way to get CLA is from food sources such as
beef, lamb and dairy products. Although CLA is available in
supplements, the long-term effects of taking CLA in this form
are unknown.
Science
Daily January 29, 2003
|