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Marijuana Decreases Insulin Resistance

Researchers have found that marijuana users have lower fasting insulin levels compared to non-users, as well as healthier waist sizes and BMI scores.
by 420insight on February 27, 2015
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Written by Sandy Calhoun Rice

Epidemiologists at the Harvard School of Public Health, the University of Nebraska College of Medicine, and Beth Israel Deaconess Medical Center have discovered something surprising about the metabolic effects of Cannabis sativa, better known as marijuana. A drug notorious for giving users the munchies can in fact help moderate blood sugar levels, waist size, and body mass index (BMI).

Their novel study, published in the current issue of The American Journal of Medicine, lays the groundwork for further investigation.

“Previous epidemiologic studies have found lower prevalence rates of obesity and diabetes in marijuana users,” said lead investigator Murray Mittleman, M.D., in a press release. “Ours is the first study to investigate the relationship between marijuana use and fasting insulin, glucose, and insulin resistance.”

Using data from the National Health and Nutrition Examination Survey (NHANES) collected between 2005 and 2010, the researchers found a significant link between the regular use of marijuana and better blood sugar control. In their analysis, participants who reported using marijuana in the past month had:

  • 16 percent lower fasting insulin levels
  • 17 percent lower levels of insulin resistance
  • higher levels of high-density lipoprotein cholesterol (HDL-C)
  • smaller waist circumference

The study incorporated data from 4,657 patients who completed a drug-use questionnaire, took a physical exam, and provided a blood sample following a nine-hour fast. Of these, 579 were current marijuana users, 1,975 had used it in the past, and 2,103 had never used marijuana.

Both insulin resistance and a large waist circumference have been linked to a greater risk of developing diabetes. The fasting insulin test used in this study is a common way to diagnose diabetes.

Marijuana users tend to consume more calories than non-users, but according to Mittleman, “two large studies found that marijuana users tended to be leaner than non-users, even after accounting for other behavioral and clinical characteristics.”

Mittleman told Healthline News that the mechanisms at work are still not entirely clear. “We know from previous work that drugs that block the cannabinoid receptors in the body have similar favorable metabolic effects,” he explained. “It is possible that some of the cannabinoid compounds in the marijuana used by the study participants may have had mixed effects, partially stimulating and partially blocking the [cannabinoid] receptors.”

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  • Avatar
    Grady Padgett "Jahpharmer"
    March 1, 2015 at 9:08 pm

    420 InSight,

    I am a Master Grower (Certified Master Gardener) with over 35 years experience growing clean, organic cannabis…and still learning!

    Please consider utilizing my skills, my dedication, my passion for this plant.

    Check-out one of my several YouTube videos:

    At the heart of most all our efforts is access to a skilled, passionate grower…I am one of those folks!

    Grady Padgett

  • Avatar
    Mark I.
    February 27, 2015 at 12:51 pm

    Cannabis consumers have already taken the personal decision to regulate intake without blind obedience to federal fearfilled influence. Personal experience has trumped a cultural bias towards sacrifice for the many. The elite few feel they are the true and only deserving beneficiaries of what our world offers to its nurturers as a quality of life undefined for the one size fits all mentalities.

  • Avatar
    February 27, 2015 at 11:02 am

    It would be interesting to examine bacterial flora in cannabis users to see if they play a role in the effects of glucose and insulin.

    Please check out my articles on cannabis by utilizing the search box on the upper right hand corner of my site:

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