Coffee has a pH level of around 5.0 to 5.5, which falls on the acidic side of the scale. Black tea and green tea typically ...

So when you drink coffee in the morning it provides instant energy, but at the same time, “Tea contains an amino acid called ...

Trailing behind is coffee, with 95 million cups drunk ... There’s evidence the effects of caffeine in a cup of tea are enhanced by an amino acid it contains, called L-theanine, if it is drunk ...