Treningsforum

Increases metabolic rate
Clinical trials conducted by the University of Geneva and the University of Birmingham indicate that green tea raises metabolic rates, speeds up fat oxidation and improves insulin sensitivity and glucose tolerance.[18] In addition to caffeine, green tea contains catechin polyphenols that raise thermogenesis (the rate at which calories are burned), and hence increases energy expenditure.[19]

There is also a suggestion that it can increase endurance in exercise by improving fat metabolism.[20]

Effects on bacterial and fungal infections
A study at Pace University reported in American Society For Microbiology (May 2008) found white tea extracts effective at treating bacterial infections, such as Staphylococcus, Streptococcus, pneumonia and dental caries.[36] White tea was also found to be effective in treating fungal infections from Penicillium chrysogenum and Saccharomyces cerevisiae. Researchers also reported that white tea extracts showed a greater effect than green tea extracts.

Boosts mental alertness
The amino acid L-theanine, found almost exclusively in the tea plant, actively alters the attention networks of the brain, according to results of human trials announced in September 2007. It has been proposed that theanine is absorbed by the small intestine and crosses the blood-brain barrier, where it affects the brain's neurotransmitters and increases alpha brain-wave activity. The result is a calmer, yet more alert, state of mind.[22][23]

Possible anti-diabetes effect
There is also epidemiological evidence that drinking green tea and black tea may help prevent diabetes,[21] although it is worth noting that this is evidence of an association, and that future studies are needed to confirm the effect.