Researchers also made assumptions about the amount of caffeine in servings of coffee and tea. The authors acknowledge that there may be information bias in the self-reported baseline intake of ...
Because of its naturally high caffeine ... to avoid black tea at meal times or with iron supplements. Tea frequently contains heavy metals, such as aluminum, although the amount present in any ...
People taking caffeine supplements and powder should take into account other sources like tea, coffee and energy drinks, to avoid consuming dangerous amounts of the stimulant, the Food Standards ...
The amount of caffeine in coffee is usually higher ... If you have trouble sleeping at night, avoid drinking green or black tea at dinner time, and stick to caffeine-free alternatives instead.