liveonearth (liveonearth) wrote,

Blueberries Increase Insulin Sensitivity

new DBPC study:
Bioactives in blueberries improve insulin sensitivity in obese, insulin-resistant men & women
J Nutr. 2010;140(10):1764-1768.
n = 32 middle aged, obese, insulin resistant peeps who haven't gotten a diabetes dx
15 in the treatment group, 17 in placebo group
used a Mediterranean diet score
participants consumed smoothies that either had or didn't have 22.5g of bluberry bioactives
bid x6wks, equaling approx 2 cups fresh bbs/day
bb bioactives made from 50/50 mix of Tifblue (Vaccinium ashei) and Rubel (Vaccinium corymbosum) blueberries
blueberries freezedried and powdered
measured insulin sensitivity after 10 hour fast at baseline, middle and end
measured using hyperinulinemic-euglycemic clamps ???
measured hsCRP, TNFa and MCP-1 (monocyte chemoattractant protein 1) and lipids in serum at same times
result: bb group had better insulin sensitivity by the end
result: no major changes in body weight, caloric intake, or inflammatory markers

other things that influence insulin sensitivity:
improves it:
large amounts of cereal fiber, such as oat bran or rye, works in short time, also lowers chol
chromium, in pts who have highest fasting glucose and A1C: works best in most dysglycemic pts
decreases it:
low vitamin D levels in African American women (not caucasian)
no change:
chromium, after 6mo 500 or 1000mcg/day no change relative to placebo in pop not dxd with DM

Tags: diabetes, diet, insulin, nutrition

  • QotD: Give Compassion to the Least Deserving

    "Find someone that's undeserving of your compassion and give it to them." --Chris Picciolini, ex-white-supremacist, who says that people…

  • QotD: Body Holds Truth

    The truth about our childhood is stored up in our body, and although we can repress it, we can never alter it. Our intellect can be deceived, our…

  • QotD: Wildness

    To be wild is not to be crazy or psychotic. True wildness is a love of nature, a delight in silence, a voice free to say spontaneous things, and…

  • Post a new comment


    Comments allowed for friends only

    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded