Caffeine works by stimulating the central nervous system (CNS), as well as the liberator of fat from fat cells - through something called cyclic AMP (cAMP).
The greatest effect on slim men
Studies on caffeine shows that caffeine increases the metabolism of fat in slim people. In men, it also appears that caffeine can affect metabolism directly, by increasing the level of T3 (the most active thyroid hormone).
It does however appear that coffee also may contain other components that has a positive effect on fat metabolism. In a study found a correlation between intake of coffee without caffeine and weight loss.
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