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Trial reveals no advantages of dairy meals for blood sugar regulation


New Fred Hutch-led trial shows no benefits of dairy foods for blood sugar regulation
Outcomes from a brand new trial printed by a group led by researchers at Fred Hutchinson Most cancers Analysis Middle suggests decrease dairy consumption could also be useful for individuals with metabolic syndrome. Credit score: Darryl Leja, Nationwide Human Genome Analysis Institute, Nationwide Institutes of Well being

Outcomes from a brand new trial printed by a group led by researchers at Fred Hutchinson Most cancers Analysis Middle suggests decrease dairy consumption could also be useful for individuals with metabolic syndrome. In a brand new examine printed within the American Journal of Medical Diet, Dr. Mario Kratz, an affiliate professor in Fred Hutch’s Public Well being Sciences Division, led a group that checked out dairy’s affect on regulating blood sugar ranges in individuals with metabolic syndrome.

This venture was motivated by earlier observational research suggesting individuals who ate essentially the most yogurt or full-fat dairy meals tended to have a decrease threat of Kind 2 diabetes. Findings from the brand new Fred Hutch-led trial confirmed that the physique’s skill to control blood sugar ranges was in a roundabout way affected by whether or not contributors consumed dairy meals. Nonetheless, consumption of both low-fat or full-fat milk, yogurt, and cheese lowered insulin sensitivity.

Metabolic syndrome is a gaggle of threat components that raises threat of coronary heart illness, diabetes, stroke and different well being issues. Insulin sensitivity refers to how the physique’s cells reply to insulin. Excessive insulin sensitivity permits the cells of the physique to make use of blood sugar extra successfully, lowering blood sugar.

The examine concerned 72 volunteer women and men who had the metabolic syndrome. Utilizing a parallel-design, randomized, managed trial, the analysis group randomized the volunteers into three teams over 12 weeks:

  1. A restricted dairy eating regimen, consisting of no dairy meals apart from—at most—three servings of skim milk per week
  2. A low-fat dairy eating regimen, consisting of greater than three servings of skim milk, nonfat yogurt and low-fat cheese per day
  3. A full-fat dairy eating regimen, consisting of greater than three servings of entire milk, full-fat yogurt and full-fat cheese per day

After the 12 weeks, Kratz and his analysis group measured quite a lot of biomarkers, together with blood sugar all through a glucose tolerance take a look at, systemic irritation and liver-fat content material. They discovered that blood sugar regulation was in a roundabout way affected by whether or not contributors consumed dairy meals. Nonetheless, contributors on the full-fat dairy eating regimen gained a modest quantity of weight, and contributors on each low-fat and full-fat dairy diets noticed a lower in insulin sensitivity. A discount in insulin sensitivity might result in an elevated threat of Kind 2 diabetes in the long run; nevertheless, as a result of blood sugar ranges weren’t affected by dairy meals, the long-term affect of lowered insulin sensitivity in individuals consuming a eating regimen wealthy in dairy on Kind 2 diabetes threat is unclear.

“Not like earlier observational research which prompt a useful relationship between fermented dairy meals equivalent to yogurt, in addition to high-fat dairy meals, and higher metabolic well being, our rigorous randomized, managed trial couldn’t affirm that consuming extra dairy meals lowers individuals’s blood sugar ranges,” mentioned Kratz. “Whereas extra work must be executed analyzing the affect of diets wealthy in dairy in wholesome populations, the discovering of lowered insulin sensitivity that resulted from greater dairy consumption could also be regarding for individuals with metabolic syndrome and comparable situations equivalent to prediabetes or Kind 2 diabetes.”

Kratz additionally feels strongly {that a} single examine ought to all the time be interpreted with warning. First, dairy-rich diets had not lowered insulin sensitivity in all earlier trials. Second, it is very important take into account that although the dairy-rich diets lowered insulin sensitivity, this didn’t result in greater blood sugar ranges in these contributors. As a result of blood sugar is the scientific endpoint the analysis group cared extra about (and it was the first endpoint on this trial), these outcomes’ interpretation will not be easy. And, lastly, when evaluating the general well being results of a meals group equivalent to dairy, the meals’s affect on the regulation of blood sugar ranges is only one of many issues.


Milk consumption linked to decrease threat of diabetes and hypertension, examine reveals


Extra info:
Kelsey A Schmidt et al, The affect of diets wealthy in low-fat or full-fat dairy on glucose tolerance and its determinants: a randomized managed trial, The American Journal of Medical Diet (2020). DOI: 10.1093/ajcn/nqaa301

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Fred Hutchinson Most cancers Analysis Middle

Quotation:
Trial reveals no advantages of dairy meals for blood sugar regulation (2020, November 16)
retrieved 26 November 2020
from https://medicalxpress.com/information/2020-11-trial-benefits-dairy-foods-blood.html

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