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Weight control

Green tea extract
Expert opinion

Green tea extract

  • Helps slim down
  • Optimizes the detoxification process (detox)
  • Prevents high blood sugar and cholesterol levels
  • Keeps blood vessels open
  • Stimulates the functioning of the heart
  • Very strong antioxidant

Obesitas

The studies on weight loss due to green tea are contradictory. This is because dietary supplements containing decaffeinated green tea extracts have no effect on weight management. In addition, several clinical studies show that the use of green tea extract with caffeine has a positive effect on weight control, weight loss and waist circumference compared to placebo.

References:
  • Phung et al. Effect of green tea catechins with or without caffeine on anthropometric measures: a systematic review and meta-analysis. Am J Clin Nutr. 2010 Jan;91(1):73-81.
  • Hursel et al. The effects of green tea on weight loss and weight maintenance: a meta-analysis. Int J Obes (Lond). 2009 Sep;33(9):956-61.
  • Auvichayapat et al. Effectiveness of green tea on weight reduction in obese Thais: A randomized, controlled trial. Physiol Behav. 2008 Feb 27;93(3):486-91.

Hyperlipidemia

Green tea has a beneficial effect on the amount of cholesterol and triglycerides (fatty acids) in the blood. Clinical research shows that the consumption of green tea significantly reduces the total amount of cholesterol and bad or LDL-cholesterol. Conclusion? The daily consumption of green tea standardised at EGCG reduces the risk of arteriosclerosis (arteriosclerosis) and also causes less damage to the vascular endothelium or the inner wall of the blood vessels. Epidemiological research has shown that drinking green tea is associated with a 28% reduced risk of coronary heart disease.

References:
  • Miyawaki et al. "Benifuuki" Extract Reduces Serum Levels of Lectin-Like Oxidized Low-Density Lipoprotein Receptor-1 Ligands Containing Apolipoprotein B: A Double-Blind Placebo-Controlled Randomized Trial. Nutrients. 2018 Jul 19;10(7).
  • Wang et al. Black and green tea consumption and the risk of coronary artery disease: a meta-analysis. Am J Clin Nutr. 2011 Mar;93(3):506-15.
  • Maron et al. Cholesterol-lowering effect of a theaflavin-enriched green tea extract: a randomized controlled trial. Arch Intern Med. 2003 Jun 23;163(12):1448-53.

Diabetes

Epidemiological research suggests that adults who consume green tea daily are less likely to develop type 2 diabetes. This is because green tea has a positive effect on HbA1c. The HbA1c value provides an insight into the average blood glucose value of the past 6 to 8 weeks. Green tea regulates the blood sugar level and lowers the HbA1c value, a risk factor for the development of diabetes.

References:
  • Huang et al. Associations of green tea and rock tea consumption with risk of impaired fasting glucose and impaired glucose tolerance in Chinese men and women. PLoS One. 2013 Nov 18;8(11):e79214.
  • Toolsee et al. Effectiveness of green tea in a randomized human cohort: relevance to diabetes and its complications. Biomed Res Int. 2013;2013:412379.
  • Iso et al. The relationship between green tea and total caffeine intake and risk for self-reported type 2 diabetes among Japanese adults. Ann Intern Med. 2006 Apr 18;144(8):554-62.