Effect of Tea Drink on Body Weight Gain of Rats and the Bioavailability of Some Minerals

Abstract

In this study, the results showed that both decoction tea and infusion tea significantly reduced the body weight growth in the tea groups as compared to the control group. The percentage of body weight gain of control group was 58.82% while of tea group was 13.36-35.18%. The addition of milk to decoction tea kept the body weight gain near the same level as control group (50.64%). Also, data showed that the tea significantly reduced nonheme iron, zinc and copper concentrations in the blood as well as in the liver and spleen of rats. On the other hand, decoction tea received two hours after meal significantly increased nonheme iron and calcium in the blood of rats. Fine decoction tea increased. Mg and Ca in the blood of rats while tea in general reduced reserve elements under investigation in liver and spleen.