![]() "While the highest concentrations of chromium in any single well are clearly from industrial leaks, the greatest number of wells and the largest geographic distribution are all from this naturally occurring chromium," said co-author Scott Fendorf, the Huffington Family Professor in Earth system science at the School of Earth, Energy & Environmental Sciences (Stanford Earth). The research found that naturally occurring chromium affects a larger area, more wells and a larger population throughout California than industrial sources, offering a new perspective on how California's groundwater resources should be managed. 27, 2012.In a study that appeared online June 27 in Environmental Science & Technology, Stanford scientists used a statewide groundwater database and a new means of tracing sources to identify wells containing hexavalent chromium from industry versus those that became contaminated from naturally occurring sources - some of which may also have resulted from human activity. Updated by: Andrew Weil, M.D., and Brian Becker, M.D., on Sept. Prostaglandin inhibitors (such as ibuprofen, indomethacin, naproxen, piroxicam, and aspirin).Nonsteroidal anti-inflammatory drugs (NSAIDS).Beta-blockers (such as atenolol or propanolol).The following, when taken with chromium, may be metabolized more slowly or quickly, or may change the absorption rate of chromium: The following medications can alter stomach acidity and may reduce chromium absorption or increase excretion of chromium: ![]() Are there any other special considerations?ĭiabetics taking chromium should do so only under physician’s supervision, as should anyone using prescribed medications for blood sugar control. Researchers have not found any toxic effects that result from taking high doses of chromium. Are there any risks associated with too much chromium? Romaine lettuce, raw onions and ripe tomatoes are all good sources. Some fruits, vegetables, and spices provide chromium. How much does a child need?īrewer’s yeast, broccoli, grape juice, meat and whole-grain products are all excellent sources. Weil recommends 200 mcg a day as part of a multi-vitamin multi-mineral, and recommends 1000 mcg of GTF chromium a day for those with type 2 diabetes or metabolic syndrome. lactating females over 18, 45 mcg per dayĭr.pregnant females over 19, 30 mcg per day.The National Institutes of Health (NIH) recommends: How much, and what kind does an adult need? Altered cholesterol metabolism, accelerated atherosclerosis, decreased growth in young people and delayed healing time after injuries or surgery can result from deficiency. ![]() Even mild deficiencies can produce problems in blood sugar metabolism, and contribute to other symptoms such as anxiety or fatigue. Life threatening clinical deficiency may be rare, but deficiency is common.īecause adequate dietary chromium helps to maintain insulin sensitivity, chromium deficiency can contribute to the development of diabetes and metabolic syndrome. Dietary chromium has a low absorption rate, which becomes even lower with age, so the elderly are especially at risk. The industrialization of the American food supply chain, reflected in very low soil levels of chromium and the loss of chromium from refined foods, especially sugar and flours, probably contributes to this. population is mildly deficient in chromium, a greater incidence of deficiency than is found in almost any other developed country. What are the signs of a chromium deficiency?Īn estimated 25-50% of the U.S. ![]() It can also help raise HDL (“good”) cholesterol levels, and may play a role in preventing heart disease. Inadequate intake of chromium has been linked to the development of glucose intolerance, a condition seen in type 2 diabetes. It enhances the actions of insulin and is necessary for maintaining normal metabolism and storage of fats, proteins and carbohydrates.
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