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Metformin Attenuates Long-Term Weight Gain in Insulin-Resistant Adolescents



metformin-300x217The biguanide metformin is widely used for the treatment of type 2 diabetes. Metformin has also been shown to slow the progression from pre to full-blown type 2 diabetes. Moreover, metformin can reduce weight gain associated with psychotropic medications and polycystic ovary syndrome.

Now, a randomised controlled trial by M P van der Aa and colleagues from the Netherlands, published in Nutrition & Diabetes suggests that long-term treatment with metformin may stabilize body weight and improve body composition in adolescents with obesity and insulin resistance.

The randomised placebo-controlled double-blinded trial included 62 adolescents with obesity aged 10ÔÇô16 years old with insulin resistance, who received 2000ÔÇëmg of metformin or placebo daily and physical training twice weekly over 18 months.

Of the 42 participants (mean age 13, mean BMI 30), BMI was stabilised in the metformin group (+0.2 BMI unit), whereas the control group continued to gain weight (+1.2 BMI units).

While there was no significant difference in HOMA-IR, mean fat percentage reduced by 3% compared to no change in the control group.

Thus, the researcher conclude that long-term treatment with metformin in adolescents with obesity and insulin resistance can result in stabilization of BMI and improved body composition compared with placebo.

Given the rather limited effective options for addressing childhood obesity, this rather safe, simple, and inexpensive treatment may at least provide some relief for adolescents struggling with excess weight gain.

@DrSharma
Edmonton, AB

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