Theanine and Weight

Byron's Comments:

Theanine positively infleunces the metabolism of calories.

Study Title:

Effect of theanine, γ-glutamylethylamide, on bodyweight and fat accumulation in mice.

Study Abstract:

To clarify the details of the anti-obesity effect of theanine, γ-glutamylethylamide, female ICR mice were fed diets containing theanine at the concentrations of 0.01, 0.02, 0.04, 0.08 and 0.16% for 16 weeks. Bodyweight and food intake in the mice were measured every 4 weeks, and several organs and intraperitoneal adipose tissues (IPAT) were weighed after the feeding. In addition, lipid levels in the serum and liver were analyzed. As a result, the bodyweight increase and weight of IPAT were significantly reduced in mice fed 0.04% theanine compared with controls, but not in mice fed other diets. The levels of triglycerides (TG) and non-esterified fatty acids in the serum and TG level in the liver in mice fed the 0.04% theanine diet were remarkably decreased. These results indicated that bodyweight increase and fat accumulation were suppressed by a limited concentration of 0.04% theanine in mice.

Study Information:

Guodong ZHENG, Kimio BAMBA, Tsutomu OKUBO, Lekh RAJ JUNEJA, Itaro OGUNI and Kazutoshi SAYAMA. Effect of theanine, γ-glutamylethylamide, on bodyweight and fat accumulation in mice. Animal Science Journal  2005 March  Volume 76 Issue 2, Pages 153 - 157.
Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka-shi, 422-8529, Japan.

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