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Doctors at Harvard Medical School, who have been following 22,000 male physicians as part of a 10-year health study, have made a stunning discovery about beta carotene. They found that men with a history of cardiac disease who were given beta carotene supplements of 50 mg every other day suffered half as many heart attacks, strokes and deaths as those popping placebo pills. No heart attacks occurred among those in this group who received aspirin along with the beta carotene capsules. The Harvard researchers have begun a trial in 45,000 postmenopausal women to see if a similar...
...pills dramatically reduced precancerous mouth lesions in 70% of patients. Pharmaceutical giant Hoffmann- La Roche is so enamored with beta carotene that it plans to open a Freeport, Texas, plant next year that will churn out 350 tons of the nutrient annually, or enough to supply a daily 6 mg capsule to virtually every American adult...
...move to slash RDAs, scheduled to go into effect next year, flies in the face of research that suggests benefits from higher doses of vitamins. The current RDA for vitamin C, for example, is 60 mg. But to get a protective effect against cataracts or cancer may require as much as 100 mg. Similarly, vitamin E may need a boost from the RDA of 10 mg to 100 mg. (There is no RDA for beta carotene, but scientists speculate that 25 mg or more a day could be needed...
Last spring the MSHA stunned the mining industry by announcing that the agency had found widespread fraud in its dust-sampling program, designed to prevent black lung. The tests are done to ensure that coal-dust levels in mines do not exceed 2 mg per cubic meter. The testing device consists of a small pump that draws air through a filter, which is sent to a federal lab and weighed for dust content. The MSHA said more than 500 companies at 847 mines had tampered with the filters. Civil penalties may reach a record $7 million. Last week 33 coal...
...genesis of sleep and the emotions. Because it lasts in the body only a matter of hours, it can trigger a boomerang effect, unleashing the very anxiety it was meant to tame. Adverse reactions become more common the higher the dose. Doses of as much as 1.0 mg were once prescribed in Europe, but the recommended dose is now only 0.25 mg. In most cases where Halcion has allegedly been linked to violent behavior, the people took more than is deemed safe, had been drinking alcohol, or had been on the drug for a long period of time...