All foods, if consumed in excess, can’t even improve health can actually be bad for the body. As with black tea which is arguably the most widely consumed beverage worldwide. Research conducted by researchers from the Medical College of Georgia revealed that the fluorine content contained in black tea is believed to be higher than during this.
Dr. Gary Whitford who is head of research said that the fluoride concentration in black tea could reach 9 mg per liter. Whereas in previous studies says that levels of black tea is said to be only about 1-5 mg. This high fluoride levels increase the risk of fluorosis on bone and teeth in people who drink the black in large quantities is approximately more than 4 cups per day. These findings were presented at the Conference IADR (International Association of Dental Research) 2010 in Barcelona, Spain mid-July.
Fluorosis is a disorder that affects the stability of the bone structure and cause damage to tooth enamel, and mainly caused by excessive intake of fluorine. Fluorine is known to prevent caries (cavities) of the teeth, but in the long term excessive intake can cause bone damage. Levels are safe to consume the black per day not more than 2-3 mg, either from food, drinking water or toothpaste. If the level exceeds 20 mg per day for over 10 years, the risk for experiencing fluorosis increased.