Green Tea Caffeine Weight Loss

Green tea with caffeine have been shown to speed up weight loss. Caffeine has been known to help with weight loss and weight management to certain extent. Green tea containing caffeine further help weight loss as will be discussed below. The weight loss and weight management of green tea with caffeine have recently been described by Margriet S. Westerterp-Plantenga, Manuela P.G.M. Lejeune and Eva M. R. Kovacs. in a research study.

The objective of the research was to investigate the effect of green tea with caffeine on weight loss and weight management.

Method of the research of the Green tea caffeine weight loss study

Under the supervision of Margriet S. Westerterm-Plantenga and co workers:

• A randomized placebo-controlled double blind parallel trial in 76 overweight and moderately obese subjects, (BMI, 27.5 ± 2.7 kg/m2) matched for sex, age, BMI, height, body mass, and habitual caffeine intake was conducted.
• A very low energy diet intervention during 4 weeks.
• Then 3 months of weight maintenance (WM); during the weight management period, the subjects received a green tea-caffeine mixture (270 mg epigallocatechin gallate + 150 mg caffeine per day) or placebo.

Results of the research of the Green tea caffeine weight loss study

Subjects of the research of the Green tea caffeine weight loss study lost 5.9 ±1.8 (SD) kg (7.0 ± 2.1%) of body weight (p < 0.001).

At baseline, satiety was positively, and in women, leptin was inversely, related to subjects’ habitual caffeine consumption (p < 0.01).

High Caffeine consumers 

High caffeine consumers reduced weight, fat mass, and waist circumference more than low caffeine consumers; resting energy expenditure was reduced less and respiratory quotient was reduced more during weight loss (p < 0.01).

Low Caffeine consumers 

In the low caffeine consumers, during WM, green tea still reduced body weight, waist, respiratory quotient and body fat, whereas resting energy expenditure was increased compared with a restoration of these variables with placebo (p < 0.01). In the high caffeine consumers, no effects of the green tea-caffeine mixture were observed during the weight management period.

The science of Green Tea Caffeine Weight Loss

Margriet S. Westerterp-Plantenga, Manuela P.G.M. Lejeune and Eva M. R. Kovacs. in the research study explained that high caffeine intake was associated with weight loss through thermogenesis and fat oxidation and with suppressed leptin in women. In habitual low caffeine consumers, the green tea-caffeine mixture improved the weight management, partly through thermogenesis and fat oxidation.