Chromium supplements: differences in utilization by humans
Conference
·
· Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States)
OSTI ID:5455717
Chromium (Cr) in the +3 oxidation state has been widely administered to subjects to examine the effects of Cr supplementation. The objective of the current project was to compare the differences in utilization of 2 Cr supplements in adult Midwestern women. Each woman serving as her own control randomly received the basal diet alone, basal diet + brewer's yeast and basal diet + chelated Cr containing 42 ..mu..g, 242 ..mu..g and 242 ..mu..g Cr daily, respectively. Treated urine and blood serum samples were analyzed in duplicate for Cr content using a Varian Techtron Atomic Absorption Spectrophotometer model 1275 equipped with a graphite furnace attachment. Mean urinary Cr excretion was similar for subjects consuming the basal diet alone or with the brewer's yeast supplement (0.16 ..mu..g/day). Use of chelated Cr supplementation led to significantly higher urinary Cr excretion (0.317 ..mu..g/day, P<0.03). This suggests that Cr supplied by chelated Cr was better than that supplied by yeast, although both supplements were apparently poorly absorbed in comparison to the Cr supplied by the diet. Blood serum Cr concentrations were not significantly altered by the experimental treatments.
- Research Organization:
- Univ. of Nebraska, Lincoln
- OSTI ID:
- 5455717
- Report Number(s):
- CONF-8604222-
- Conference Information:
- Journal Name: Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States) Journal Volume: 45:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560306* -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION SPECTROSCOPY
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BLOOD SERUM
BODY FLUIDS
CHELATING AGENTS
CHROMIUM
CLEARANCE
DIET
ELEMENTS
EXCRETION
FUNGI
MAMMALS
MAN
MATERIALS
METABOLISM
METALS
MICROORGANISMS
PLANTS
PRIMATES
SPECTROSCOPY
TRANSITION ELEMENTS
URINE
VERTEBRATES
WASTES
YEASTS
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION SPECTROSCOPY
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BLOOD SERUM
BODY FLUIDS
CHELATING AGENTS
CHROMIUM
CLEARANCE
DIET
ELEMENTS
EXCRETION
FUNGI
MAMMALS
MAN
MATERIALS
METABOLISM
METALS
MICROORGANISMS
PLANTS
PRIMATES
SPECTROSCOPY
TRANSITION ELEMENTS
URINE
VERTEBRATES
WASTES
YEASTS