Te kan förbättra insulinkänslighet och skydda mot diabetes.

[King Grub]

Diabetes mellitus and its sequelae are a major and growing public health problem. The prevalence of diabetes worldwide is 194 million persons, or 5.1% of the population, and is projected to increase to 333 million, or 6.3% of the population, by 2025. Type 2 diabetes accounts for ~90–95% of those with diabetes in the United States and other developed countries. Tea is the most widely consumed beverage in the world, second only to water. Tea contains polyphenols and other components that may reduce the risk of developing chronic diseases such as cardiovascular disease and cancer. Some evidence also shows that tea may affect glucose metabolism and insulin signaling, which, as a result, has spurred interest in the health effects of tea consumption on diabetes. Epidemiologic studies suggest some relation between tea consumption and a reduced risk of type 2 diabetes, although the mechanisms for these observations are uncertain. Findings from in vitro and animal models suggest that tea and its components may influence glucose metabolism and diabetes through several mechanisms, such as enhancing insulin sensitivity. Some human clinical studies evaluating tea and its components show improvement in glucoregulatory control and endothelial function. However, further controlled clinical trials are required to gain a better understanding of the long-term effects of tea consumption in persons with diabetes.

Tea Consumption May Improve Biomarkers of Insulin Sensitivity and Risk Factors for Diabetes J. Nutr. 2008 138: 1584S-1588S.

http://jn.nutrition.org/cgi/content/full/138/8S-I/1584S

[Angel]

Så bra, för jag klunkar iallfall två koppar om dagen.

[stevebc]

Så bra, för jag klunkar iallfall två koppar om dagen.+1 men bara grönt te.

Med tanke på att det var polyfenolerna som gav effekten, medför detta att grönt te ger sämre eller bättre effekt än det (svarta?) te de testade?

[King Grub]

Det här är en artikel, ingen studie. Författarna har inte testat något.

[Eddie Vedder]

Bump.:)

Positiva effekter på Hba1c-nivåer efter supplementering med grönt té extrakt. Här står lite om vad Hba1c är för något:

http://en.wikipedia.org/wiki/Glycosylated_hemoglobin
http://www.alltomdiabetes.se/WebSite/Content/Living-With-Diabetes/For-Dig-med-typ-1/Din_behandling/Vad%20ar%20HBa1c.aspx
Objective: We examined whether green tea-extract powder supplementation improves glucose abnormality.

Methods: The study was conducted for volunteers who resided in eastern communities of Shizuoka Prefecture and who had fasting blood glucose levels of 6.1 mmol/l or nonfasting blood glucose levels of 7.8 mmol/l in a recent health check-up. Sixty subjects aged 32–73 years (49 males and 11 females) participated in the trial. The Early intervention group consumed a packet of green tea-extract powder containing 544 mg polyphenols (456 mg catechins) daily for the first 2 months and then entered the 2-month nonintervention period. The Later intervention group was observed for the first 2 months and then consumed green tea-extract powder as described above for the subsequent 2 months. Using the two-period crossover design, we analyzed the changes in fasting hemoglobin A1c level and other biomarkers in blood samples collected at baseline, 2 months and 4 months.

Results: A significant reduction in hemoglobin A1c level and a borderline significant reduction in diastolic blood pressure were associated with the intervention. The intervention caused no significant changes in weight, body mass index, body fat, systolic blood pressure, fasting serum glucose level, homeostasis model assessment index, serum lipid level or hypersensitive C-reactive protein.Objective: We examined whether green tea-extract powder supplementation improves glucose abnormality.

Methods: The study was conducted for volunteers who resided in eastern communities of Shizuoka Prefecture and who had fasting blood glucose levels of 6.1 mmol/l or nonfasting blood glucose levels of 7.8 mmol/l in a recent health check-up. Sixty subjects aged 32–73 years (49 males and 11 females) participated in the trial. The Early intervention group consumed a packet of green tea-extract powder containing 544 mg polyphenols (456 mg catechins) daily for the first 2 months and then entered the 2-month nonintervention period. The Later intervention group was observed for the first 2 months and then consumed green tea-extract powder as described above for the subsequent 2 months. Using the two-period crossover design, we analyzed the changes in fasting hemoglobin A1c level and other biomarkers in blood samples collected at baseline, 2 months and 4 months.

Results: A significant reduction in hemoglobin A1c level and a borderline significant reduction in diastolic blood pressure were associated with the intervention. The intervention caused no significant changes in weight, body mass index, body fat, systolic blood pressure, fasting serum glucose level, homeostasis model assessment index, serum lipid level or hypersensitive C-reactive protein.

Conclusion: Daily supplementary intake of green tea-extract powder lowered the hemoglobin A1c level in individuals with borderline diabetes.

http://www.nature.com/ejcn/journal/v62/n8/full/1602806a.html

Randomized controlled trial for an effect of green tea-extract powder supplementation on glucose abnormalities. European Journal of Clinical Nutrition (2008) 62, 953–960

[Scratch89]

Vad innebär borderline diabetes?

[Angel]

Vad innebär borderline diabetes?

Om man ligger på gränsen till att ha det kanske?

[Scratch89]

Om man ligger på gränsen till att ha det kanske?

Bra synpunkt där. Tack! :thumbup:

[Angel]

Bra synpunkt där. Tack! :thumbup:

Vild gissning :Virro