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.
Myth #1: Black Tea Has More Caffeine Than Green. All tea has caffeine, usually less than coffee, though exactly how much varies from tea to tea, which leads some tea companies and pundits to break down caffeine content by broad style: green tea has this much caffeine, black tea that much, etc.