March 5, 1987
Calcium supplements, once believed harmless insurance against osteoporosis, can actually contribute to poor bone development by blocking the absorption of manganese, a key trace element in bone development. "There is a manganese absorption problem associated with the use of calcium supplements, especially in large doses," said Constance Kies, Ph.D., who works at the University of Nebraska, Lincoln, and with the Dairy Council of California.
March 16, 2009 |
Teas from across the globe are becoming more and more popular in the U.S. One relative newcomer, yerba mate, is attracting fans for its allegedly jitter-free caffeine boost and high antioxidant content. Lab research suggests some potential health benefits from drinking yerba mate, but studies of lifelong yerba mate drinkers in the tea's native South America suggest the brew increases the risk of some cancers -- a fact most marketing campaigns omit.
January 22, 1985 |
Norway will cut imports from South Africa by 50% this year because of Pretoria's policy of apartheid, Commerce Minister Asbjoern Haugstvedt said in an interview published today. Norway has come under pressure to take action on growing trade with Pretoria since the Nobel Peace Prize was awarded in December to black anti-apartheid campaigner Bishop Desmond Tutu. South Africa's main export to Norway is manganese ore.
November 2, 1990 |
Ethyl Corp., a Richmond, Va.--based chemical company, on Thursday temporarily withdrew its application for approval of a gasoline additive designed to reduce emissions, just days before a deadline for the Environmental Protection Agency to act on it. After meeting with EPA officials Wednesday, the company said it needed more time to answer questions raised about HiTEC 3000, a manganese-based additive that the company contends would reduce emissions while boosting octane in unleaded gasoline.
CALIFORNIA | LOCAL
June 29, 2013 |
In most towns, state officials showing up to announce that the drinking water was neither the best nor the worst in California would not be a big deal. But in Maywood, where water has been a political blood sport, a peaceful meeting Saturday at the local YMCA, dominated by science and not verbal fisticuffs, was unusual. And welcomed. The few dozen residents who showed up were told that the water they drank did not pose a public health risk, although officials expressed concern about the presence of one chemical in a few wells.