Word: vitamins
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...much fat is there in a can of corned beef hash? Just how nourishing is a vitamin-enriched cupcake? What is the true caloric content of a serving of diet pudding? What is the difference between orange juice and an orange-flavored drink? Questions like these have bedeviled health-and diet-conscious consumers for years. Under radical new rules announced last week by the Food and Drug Administration, people will get all that information and more on food packages...
...VITAMINS and other supplements will come under strict new controls. Foods containing less than 50% of the RDA of any vitamin need only carry standard nutritional information on their labels. Those containing up to 150% of the RDA must meet federal standards for dietary supplements. But those containing more than 150% of the RDA must be labeled and marketed as drugs. The purpose is to curb excessive use of vitamins, which is often useless and occasionally dangerous. (The FDA has decided that such newly designated drugs would be sold over the counter, rather than by prescription...
...Harvard research group, collaborating with chemists around the world, has successfully synthesized vitamin B-12, the only vitamin that has not been previously reproduced...
...Vitamin B-12 is used in the treatment of pernicious amenia. Plans to synthesize the vitamin for medical use are not underway however, because natural B-12 is a fairly cheap by-product of certain chemical processes...
More important than the actual synthesis of vitamin B-12 were the chemical principles developed during the investigation, Woodward said. Woodward and Ronald Hoffman of Cornell found new rules of "orbital symmetry" in organic compounds...