With all the great green press that runs circles around green tea, it’s hard to believe that there are some downsides to the tea that will apparently drink you slim! If it’s coffee that you’re substituting for green tea, then fantastic, but there are some points still to consider.
Green tea DOES contain caffeine. Only 25mg, compared to 100-150mg in a cup of coffee. So by swapping your coffee for green tea, caffeine intake may reduce by 75%. Caffeine content varies slightly from brand to brand as well as the time you brew it for.
Green tea also contains the two stimulants, theophylline and theobromine which act similarly to caffeine by raising heart rate, temporarily increasing alertness, reducing motor coordination and causing insomnia and headaches.
It is also believed that boiling water destroys the disease-fighting flavonoids. So do the benefits outweigh the disadvantages?
As a healthy tea option, despite the downsides, green tea is definitely still up there at the healthier end of the spectrum:
- It contains a compound that helps to inhibit the growth of some cancer cells.
- Some research shows that it lowers cholesterol levels whilst improving the ratio of good (HDL) to bad (LDL) cholesterol.
- Believe it or not green tea comes from the same leaves as the common black tea we all drink, but the difference is that green tea leaves are steamed rather than being fermented like black tea leaves. Steaming prevents the antioxidant compounds (catechin polyphenols) from being oxidised keeping them extra fresh and ready to help fight disease and banish damaging free radicals.
- In a study by the American Journal of Nutrition, it was found that men who drank green tea burned more calories than those drinking higher caffeine drinks.