Guest guest Posted January 11, 2005 Report Share Posted January 11, 2005 Although not shown in the below abstract, a 10% reduction in total energy intake based on body mass, height and activity level was followed by both groups. This is encouraging news for speeding up changes in body composition. Logan Ingestion of a tea rich in catechins leads to a reduction in body fat and malondialdehyde-modified LDL in men. Nagao T, Komine Y, Soga S, Meguro S, Hase T, Tanaka Y, Tokimitsu I. From Health Care Products Research Laboratories No.1, Kao Corporation, Tokyo. BACKGROUND: Catechins, the major component of green tea extract, have various physiologic effects. There are few studies, however, on the effects of catechins on body fat reduction in humans. It has been reported that the body mass index (BMI) correlates with the amount of malondialdehyde and thiobarbituric acid-reactive substances in the blood. OBJECTIVE: We investigated the effect of catechins on body fat reduction and the relation between oxidized LDL and body fat variables. DESIGN: After a 2-wk diet run-in period, healthy Japanese men were divided into 2 groups with similar BMI and waist circumference distributions. A 12-wk double-blind study was performed in which the subjects ingested 1 bottle oolong tea/d containing 690 mg catechins (green tea extract group; n = 17) or 1 bottle oolong tea/d containing 22 mg catechins (control group; n = 18). RESULTS: Body weight, BMI, waist circumference, body fat mass, and subcutaneous fat area were significantly lower in the green tea extract group than in the control group. Changes in the concentrations of malondialdehyde-modified LDL were positively associated with changes in body fat mass and total fat area in the green tea extract group. CONCLUSION: Daily consumption of tea containing 690 mg catechins for 12 wk reduced body fat, which suggests that the ingestion of catechins might be useful in the prevention and improvement of lifestyle-related diseases, mainly obesity. PMID: 15640470 [PubMed - in process] Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2005 Report Share Posted January 11, 2005 Hi All, Were they CRed?: Dietary condition of the subjects Three subjects were excluded from the analysis because of a marked change in their living environment during the study (control group, n = 18; GTE group, n = 17). The daily energy intake was 8.7 ± 0.1 MJ at week 0 and 8.8 ± 0.1 MJ at week 12 in the control group and 8.6 ± 0.1 MJ at week 0 and 8.6 ± 0.1 MJ at week 12 in the green tea extract group. Those daily energy values were very close to the Japanese standard, which is 9.0–9.4 MJ in men 20–40 y old at living activity strength 1 (35), and 90% of the values were 8.3–8.5 MJ. " Drinking tea with catechin levels 31-fold different means we need to consume 31 bottle of green tea? > > Although not shown in the below abstract, a 10% reduction in total > energy intake based on body mass, height and activity level was > followed by both groups. This is encouraging news for speeding up > changes in body composition. > > Logan > > > Ingestion of a tea rich in catechins leads to a reduction in body fat > and malondialdehyde-modified LDL in men. > > Nagao T, Komine Y, Soga S, Meguro S, Hase T, Tanaka Y, Tokimitsu I. > > BACKGROUND: Catechins, the major component of green tea extract, have > various physiologic effects. There are few studies, however, on the > effects of catechins on body fat reduction in humans. It has been > reported that the body mass index (BMI) correlates with the amount of > malondialdehyde and thiobarbituric acid-reactive substances in the > blood. OBJECTIVE: We investigated the effect of catechins on body fat > reduction and the relation between oxidized LDL and body fat > variables. DESIGN: After a 2-wk diet run-in period, healthy Japanese > men were divided into 2 groups with similar BMI and waist > circumference distributions. A 12-wk double-blind study was performed > in which the subjects ingested 1 bottle oolong tea/d containing 690 > mg catechins (green tea extract group; n = 17) or 1 bottle oolong > tea/d containing 22 mg catechins (control group; n = 18). RESULTS: > Body weight, BMI, waist circumference, body fat mass, and > subcutaneous fat area were significantly lower in the green tea > extract group than in the control group. Changes in the > concentrations of malondialdehyde-modified LDL were positively > associated with changes in body fat mass and total fat area in the > green tea extract group. CONCLUSION: Daily consumption of tea > containing 690 mg catechins for 12 wk reduced body fat, which > suggests that the ingestion of catechins might be useful in the > prevention and improvement of lifestyle-related diseases, mainly > obesity. > > PMID: 15640470 [PubMed - in process] Quote Link to comment Share on other sites More sharing options...
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