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.
Green teas are the least processed type of tea leaves, which means they tend to be lighter in color and more delicate in taste than black teas. Caffeine levels of green teas were generally much lower (about 14mg to 37 mg per eight-ounce cup) compared to black teas (50 mg per cup) or coffee (140 mg per cup). Costs of the teas varied widely, but researchers say that unlike wine, even rare teas are an affordable luxury.