Nutritional Selenium Supplements: Product Types, Quality, and Safety

@article{Schrauzer2001NutritionalSS,
  title={Nutritional Selenium Supplements: Product Types, Quality, and Safety},
  author={Gerhard Norbert Schrauzer},
  journal={Journal of the American College of Nutrition},
  year={2001},
  volume={20},
  pages={1 - 4}
}
  • G. Schrauzer
  • Published 1 February 2001
  • Chemistry, Medicine
  • Journal of the American College of Nutrition
Selenium supplements contain selenium in different chemical forms. In the majority of supplements, the selenium is present as selenomethionine. However, in multivitamin preparations, infant formulas, protein mixes, weight-loss products and animal feed, sodium selenite and sodium selenate are predominantly used. In some products, selenium is present in protein- or amino acid chelated forms; in still others, the form of selenium is not disclosed. Current evidence favors selenomethionine over the… 

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...

References

SHOWING 1-10 OF 29 REFERENCES

Selenomethionine and Selenium Yeast: Appropriate Forms of Selenium for Use in Infant Formulas and Nutritional Supplements

Because the natural selenium content of infant formulas is generally low, selenium fortification is necessary to improve the selenium status of formula-fed infants. The question as to the form of

Selenomethionine: a review of its nutritional significance, metabolism and toxicity.

It is shown that at constant intakes in the nutritional range, tissue Se levels increase until a steady state is established, preventing the build-up to toxic levels, and for animals, DL-Se-met is acceptable.

Selenium in human nutrition: dietary intakes and effects of supplementation.

Selenium status of exclusively breast-fed infants as influenced by maternal organic or inorganic selenium supplementation.

The results suggest that a maternal daily intake of 50-75 micrograms is adequate during lactation, which is below the lower limit of the safe and adequate range as set by the US National Research Council.

Selenium status of lactating women is affected by the form of selenium consumed.

Results clearly show that the source of selenium provided to lactating women can significantly influence selected indexes ofSelenium status, including milk selenum concentration, in both lactating and nonlactating women.

Responses to organic and inorganic selenium in the performance and blood selenium content of growing pigs

No significant differences were found in daily gain, feed/gain ratio or carcass quality of growing pigs fed with 0.1 mg inorganic Se or the same amount of Se bound in yeast.

Influence of dietary methionine on the metabolism of selenomethionine in rats.

The data suggest that methionine diverts SeMet from incorporation into general proteins and enhances its conversion to selenocysteine for specific selenium-requiring proteins, such as GSHPx.

Naturally occurring selenium compounds in cancer chemoprevention trials: a workshop summary.

  • B. PattersonO. Levander
  • Medicine, Biology
    Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
  • 1997
Recent results from epidemiological studies and a human intervention trial indicates that selenium (Se) may have chemopreventive activity in humans, and may provide an explanation of earlier findings showing a protective effect of elevated Se intakes against a mouse mammary tumor virus.

Selenium from high selenium broccoli protects rats from colon cancer.

Adequate dietary Se supplied as high Se broccoli did not accumulate in tissues or increase glutathione peroxidase activity as well as other forms and amounts of Se.

Studies of safe maximal daily dietary Se-intake in a seleniferous area in China. Part II: Relation between Se-intake and the manifestation of clinical signs and certain biochemical alterations in blood and urine.

Selenosis occurs in areas of Enshi county because of the high Se content of the food. Morphological changes in finger-nails were used as the main criterion for clinical diagnosis of selenosis.