Dietary Reference Intakes The Essential Guide to Nutrient Requirements (2006) / Chapter Skim
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Pages 296-303
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From page 296... ...
TABLE 1 Dietary Reference Intakes for Chromium by Life Stage Group DRI values (mg/day) AIa ULb males females Life stage group 0 through 6 mo 0.2 0.2 7 through 12 mo 5.5 5.5 1 through 3 y 11 11 4 through 8 y 15 15 9 through 13 y 25 21 14 through 18 y 35 24 19 through 30 y 35 25 31 through 50 y 35 25 51 through 70 y 30 20 > 70 y 30 20 Pregnancy £ 18 y 29 19 through 50 y 30 Lactation £ 18 y 44 19 through 50 y 45 aAI = Adequate Intake.
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From page 297... ...
PART III: CHROMIUM 297 CHROMIUM C hromium potentiates the action of insulin and may improve glucose tolerance. The form of chromium found in foods is trivalent chromium, or chromium III, which is the form discussed in this chapter.
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From page 298... ...
DRIs: THE ESSENTIAL GUIDE TO NUTRIENT REQUIREMENTS 298 Absorption, Metabolism, Storage, and Excretion Chromium absorption by the body is generally low, with absorption estimates ranging from 0.4 to 2.5 percent. Some studies suggest that chromium absorp tion increases with exercise, but further research is necessary.
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PART III: CHROMIUM 299 The UL The Tolerable Upper Intake Level (UL) is the highest level of daily nutrient intake that is likely to pose no risk of adverse effects for almost all people.
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DRIs: THE ESSENTIAL GUIDE TO NUTRIENT REQUIREMENTS 300 Bioavailability Most chromium compounds are soluble at the pH of the stomach, but less soluble hydroxides may form as pH is increased. The environment of the gas trointestinal tract and ligands provided by food and supplements are important for mineral absorption.
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From page 301... ...
PART III: CHROMIUM 301 INADEQUATE INTAKE AND DEFICIENCY Chromium deficiency has been reported in three patients who did not receive supplemental chromium in their total parenteral nutrition (TPN) solutions.
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PART III: CHROMIUM 303 KEY POINTS FOR CHROMIUM Chromium potentiates the action of insulin and may improve 3 glucose tolerance. Since data were insufficient to set an EAR and thus calculate 3 an RDA for chromium, an AI was instead developed.
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