is there an athlete in the house? 2017 study on serum zinc

Using exercise and physical therapy for recovery from the effects of MS, and for maintaining physical function.

is there an athlete in the house? 2017 study on serum zinc

Postby jimmylegs » Tue Dec 19, 2017 6:54 pm

the things you never thought athletes and ms patients might have in common!
(well i did, but, you know)

Lower Serum Zinc Concentration Despite Higher Dietary Zinc Intake in Athletes: A Systematic Review and Meta-analysis
https://link.springer.com/article/10.10 ... 017-0818-8

Background
Zinc is an essential trace element that has been implicated in numerous biological functions, including immunity, energy metabolism and antioxidative processes. Recent evaluations of the literature have provided evidence of significant acute changes in zinc metabolism following a bout of aerobic exercise.

Objective
The aim of this study was to determine the zinc status of trained athletes compared with control populations, as described in cross-sectional studies.

Design
We conducted a systematic literature search of the PubMed, Scopus, SPORTDiscus and Cochrane Library electronic databases from inception to 28 January 2016 to identify cross-sectional studies that determined the zinc status of athletes compared with a control population. Meta-analysis of the differences in serum zinc concentration and dietary zinc intake between groups were conducted.

Results
Twelve studies were included in the systematic review. Of the included studies, nine and eight studies provided sufficient data for the meta-analysis of serum zinc concentration and dietary zinc intake, respectively. Serum zinc concentration was significantly lower in athletes [− 0.93 μmol/L, 95% confidence interval (CI) − 1.62 to − 0.23] despite significantly higher dietary zinc intake compared with the control population (2.57 mg/day, 95% CI 0.97–4.16). Data on erythrocyte and urinary zinc from the included studies were insufficient for meta-analysis.

Conclusions
Despite higher total dietary zinc intake, athletes generally have lower serum zinc concentration, which suggests that athletes have higher requirement of zinc than those who are physically inactive. Further investigations of zinc metabolism during exercise and dietary zinc requirement in active populations are needed to establish evidence-based recommendations.

(0.93 umol/l is equivalent to about a 6 unit difference for those used to seeing serum zinc in ng/ml, or whatever it is typically when in non metric units)

when i have more time i'll see if i can grab the serum means from the full text, not just the differences btw athletes and controls. would be interesting to see how far off the athletic group were from your average ms patient.
take control of your own health
pursue optimal self care at least as actively as a diagnosis
ask for referrals to preventive health care specialists eg dietitians
don't let suboptimal self care muddy any underlying diagnostic picture!
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jimmylegs
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