Too much tea leads to a rare bone disease.

A Detroit woman has been diagnosed with an extremely rare bone disease, believed to be skeletal fluorosis.

The woman drank a pitcher of tea everyday for the past 17 years. Each container was made from about 100 tea bags.

For the last several years, she has suffered from pain in her lower back, arms and legs. She was referred to a physician at Henry Ford Hospital after her original doctors suspected she might have cancer.

An endocrinology specialist at Henry Ford determined the woman had skeletal fluorosis, due to the high levels of fluoride in her blood. That mineral is found in both tea and drinking water. If a patient consumes an excessive amount, the fluoride gradually forms crystal deposits on the bone.

In 2011 another case was reported. A 48-yr-old unidentified American woman developed skeletal fluorosis from brewed tea.

Along with having vitamin D deficiency, she also suffered from severe bone and joint pain. The lady had consumed 1-2 gallons of orange pekoe tea on a daily basis for three decades prior to her diagnosis.