Selenium absorption higher from wheat than fish

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This one is backwards of what I thought it would be. You would think that you could absorb something from meat better than wheat, but, they are publishing this regardless.

I don't think selenium supplementation is something that is entirely understood, but if one is eating a diet with marginal levels of selenium coming from fish, then you may not be in the best shape.

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Int J Vitam Nutr Res. 2005 May;75(3):179-86.

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Absorption of selenium from wheat, garlic, and cod intrinsically labeled with Se-77 and Se-82 stable isotopes.Fox TE, Atherton C, Dainty JR, DJ, Langford NJ, Baxter MJ, Crews HM, Fairweather-Tait SJ.Institute of Food Research, Norwich Research Park, Norwich NR4 7UA, UK.There is limited information on the absorption of selenium from different foods in humans because of technical difficulties associated with isotopic labeling of dietary

selenium. Wheat, garlic, and cod fish were intrinsically labeled with Se-77 or Se-82 stable isotopes. Labeled meals were fed in random order to 14 adults, with a minimum washout period of six weeks between each test meal. Apparent absorption was measured as luminal loss using a fecal monitoring technique over an 8-day period. Plasma appearance of the isotope was measured at 7, 24, and 48 hours post-ingestion. Selenium absorption (+/- SD) was significantly higher (p < 0.001) from wheat (81.0 +/- 3.0%) and garlic (78.4 +/- 13.7%) than from fish (56.1 +/- 4.3%). Lowest plasma concentration was observed after the fish meal at all three time points, with a peak at 24 hours, whereas wheat produced the highest plasma concentration at all three time points and peaked at 7 hours. Selenium absorption from wheat and garlic was higher than from fish, and inter-individual variation was low. Form of selenium and food constituents appear to be key determinants of

post-absorptive metabolism.PMID: 16028633 [PubMed - in process]

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http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=pubmed & dopt=Abstract & list_uids=16028633

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