Micronutrients & recovery
Geographic residence in the U.S. is a significant independent predictor of selenium levels, with individuals in the West and Northern Midwest having higher levels than those in the Southern Midwest.
Where you live in the U.S. affects your selenium levels, with people in the West and Northern Midwest generally having higher levels than those in the Southern Midwest. This is likely due to differences in soil selenium content affecting crops. If you live in a lower-selenium region, you can compensate by eating more selenium-rich foods like beef, bread, or Brazil nuts, or by considering a selenium supplement.
Compared to participants residing in Southern Midwestern states, those living in the West, Midwest-North, and South had significantly higher toenail selenium levels (West: 8.9% higher... Northern Midwest: 7.4% higher... and South: 2.8% higher...)
Why this rating
Large sample size, objective biomarker, and adjustment for diet and lifestyle.
Source
Demographic and lifestyle factors and selenium levels in men and women in the U.S.
Kyong Park et al. · Nutrition Research and Practice · 2011
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