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What is the effect of zinc supplementation on dehydro testosterone (DHT)?
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<blockquote data-quote="Re-Ride" data-source="post: 41414" data-attributes="member: 8395"><p>"Zinc rich foods" are ones that when fired and reduced to ash assay for relatively higher levels of elemental zinc. That doesn't say much for bioavailability. Phytates in legumes have received much attention as protagonists for zinc absorption. </p><p><a href="http://ajcn.nutrition.org/content/78/3/633S.full" target="_blank">http://ajcn.nutrition.org/content/78/3/633S.full</a></p><p></p><p>The work by Schlemmer et al, posted above, shows that almonds and walnuts have a wide range of phytic acid, 0.35-9.4 and 0.2-9.4 g/100g for example. When it comes to making dietary recommendations there are no easy answers although most sites claim they have them all. </p><p></p><p>Claims low low zinc levels aren't seen in those on western vegetarian. Where's the science </p><p><a href="http://ajcn.nutrition.org/content/78/3/633S.full" target="_blank">http://ajcn.nutrition.org/content/78/3/633S.full</a></p><p></p><p>USDA</p><p><a href="http://agresearchmag.ars.usda.gov/1998/mar/zinc/" target="_blank">http://agresearchmag.ars.usda.gov/1998/mar/zinc/</a></p><p></p><p>What has been shown fairly clearly is that zinc absorption, even w/o phytates present, is tricky business. It is not linear. Our bodies seem designed to limit Zn uptake in a meal or supplementation event. You can still overdo it as Nelson cautions. There are as many who swear by ZMA, gluconate and other forms as they are who say the oxide is just fine . </p><p></p><p>Zn is clearly important in the synthesis of our hormones and in spermatogenisis. [ After reading abut Zn there is mixed info? ] As a statement I'd say that's spot on sportsfan.</p></blockquote><p></p>
[QUOTE="Re-Ride, post: 41414, member: 8395"] "Zinc rich foods" are ones that when fired and reduced to ash assay for relatively higher levels of elemental zinc. That doesn't say much for bioavailability. Phytates in legumes have received much attention as protagonists for zinc absorption. [url]http://ajcn.nutrition.org/content/78/3/633S.full[/url] The work by Schlemmer et al, posted above, shows that almonds and walnuts have a wide range of phytic acid, 0.35-9.4 and 0.2-9.4 g/100g for example. When it comes to making dietary recommendations there are no easy answers although most sites claim they have them all. Claims low low zinc levels aren't seen in those on western vegetarian. Where's the science [url]http://ajcn.nutrition.org/content/78/3/633S.full[/url] USDA [url]http://agresearchmag.ars.usda.gov/1998/mar/zinc/[/url] What has been shown fairly clearly is that zinc absorption, even w/o phytates present, is tricky business. It is not linear. Our bodies seem designed to limit Zn uptake in a meal or supplementation event. You can still overdo it as Nelson cautions. There are as many who swear by ZMA, gluconate and other forms as they are who say the oxide is just fine . Zn is clearly important in the synthesis of our hormones and in spermatogenisis. [ After reading abut Zn there is mixed info? ] As a statement I'd say that's spot on sportsfan. [/QUOTE]
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What is the effect of zinc supplementation on dehydro testosterone (DHT)?
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