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Chromium deficiency is described as the consequence of an insufficient dietary intake of the mineral chromium. Chromium was first proposed as an essential element for normal glucose metabolism in 1959, [ 1 ] but its biological function has not been identified. [ 2 ]
Recommended Dietary Allowances (RDA), the daily dietary intake level of a nutrient considered sufficient by the Food and Nutrition Board of the Institute of Medicine to meet the requirements of 97.5% of healthy individuals in each life stage and sex group. The definition implies that the intake level would cause a harmful nutrient deficiency in ...
A single slice (68 g) of beef liver exceeds the tolerable upper intake level of vitamin A (6410 μg preformed vs. UL for preformed = 3000 μg). [4] 100 g cod liver contains 5 mg of vitamin A and 100 μg of vitamin D. [5] Liver contains large amounts of vitamin B 12, and this was one of the factors that led to the discovery of the vitamin. [6]
The recommended adequate intake of sodium is 1,500 milligrams (3.9 g salt) per day, and people over 50 need even less." [13] The Daily Value for potassium, 4,700 mg per day, was based on a study of men who were given 14.6 g of sodium chloride per day and treated with potassium supplements until the frequency of salt sensitivity was reduced to 20%.
Chromium deficiency: Severely impaired glucose tolerance, weight loss, peripheral neuropathy and confusion. [3] [4] The authorities in the European Union do not recognize chromium as an essential nutrient, [5] those in the United States do, and identify an adequate intake for adults as between 25 and 45 μg/day, depending on age and sex. [4]
The recommended daily allowance of zinc is 11 mg for older men and 8 mg for older women, with an upper tolerable limit of 25–40 mg per day, including both dietary and supplemental sources. However, individuals over 60 often consume less than 50% of the recommended zinc intake, which is crucial for proper body function.
The Stigler diet is an optimization problem named for George Stigler, a 1982 Nobel laureate in economics, who posed the following problem:. For a moderately active man weighing 154 pounds, how much of each of 77 foods should be eaten on a daily basis so that the man’s intake of nine nutrients will be at least equal to the recommended dietary allowances (RDAs) suggested by the National ...
As of 27 May 2016, the percentage of daily value was revised to 35 μg to bring the chromium intake into a consensus with the official Recommended Dietary Allowance. [ 115 ] [ 116 ] A table of the old and new adult daily values in the United States is provided at Reference Daily Intake .