Symptoms of a choline deficiency may possibly include: 1  low energy levels of fatigue. 2  memory loss. 3  cognitive decline. 4  learning disabilities. 5  muscle aches. 6  nerve damage. 7  mood changes or disorders.
Black teas are fully oxidized teas. Black teas brew a liquor from reddish brown to dark brown. They are the most popular type of tea in the Western world. Black teas range from 40 â 60 milligrams of caffeine per 8 oz cup.
Black tea has the most caffeine, then green, then white. Herbal teas, however, do not actually contain any leaves from an actual tea plant. They are composed of various fruits, spices and herbs and therefore do not contain any inherent caffeine.