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Boron intakes in selected populations in Turkey and the US.
Author(s) -
Meacham Susan,
Sayli Ugur,
Korkmaz Mehmet,
Carper Stephen,
Bakirdere Sezgin,
Ataman O. Yavuz
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.1_supplement.311.7
Subject(s) - medicine , incidence (geometry) , nutrient , prostate cancer , zoology , cancer , chemistry , biology , mathematics , geometry , organic chemistry
Average intakes determined using different methods have estimated 1.0–1.2 mg boron (B)/d for adults in the United States (US). Similar intakes have been reported in Turkey where limited control subjects were compared with subjects living in B‐rich areas. In Turkey an initial study observed a decrease in incidence of cervical cancer‐related histopathological findings when B intakes were 8.41 mg/d in naturally B‐rich regions. A US study reported an inverse relationship between natural B concentrations in the water and prostate cancer. In the US differing B intakes have been observed in US college females with a 20% increase observed when diets considered adequate on the basis of 7 of 8 key nutrients (1.28 ± 1.00 mg/d; n=13) were compared to all diets (1.02 ± 0.83 mg/d, n=28). Elderly women (85% of 39; 71.2 ± 10.2 yr) reported consuming 1–29 dietary supplements daily. In the US B is listed on 107 commercial product labels, some providing 3 mg B/tablet. B was identified by high resolution ICP‐MS analysis in commercial products without listing B on the label (i.e., 152 μg B/g and 137 μg B/g in two products). Confirming B intakes in subpopulations consuming higher than average daily intakes from both natural and supplement sources should be confirmed. Further studies are needed in these subpopulations to support the observed healthful benefits with regard to cancer and to elucidate the mechanism of action of B in humans.