Plasma mineral levels in marathon runners during a 20-day road race

R. H. Dressendorfer, C. E. Wade, Carl L Keen, J. H. Scaff

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


Sports nutritionists generally think an athlete's increased mineral requirements can be satisfied by a greater but well-balanced caloric intake. This study supports that concept, demonstrating that 12 male runners who consumed an unrestricted, isocaloric diet maintained normal plasma mineral levels without using mineral supplements during a 500-km (312-mile) road race. None of the nine minerals tested (calcium, phosphorus, sodium, potassium, chloride, magnesium, iron, copper, and zinc) showed tendencies to become persistently reduced over the 20-day period.

Original languageEnglish (US)
Pages (from-to)113-118
Number of pages6
JournalPhysician and Sportsmedicine
Issue number6
StatePublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Public Health, Environmental and Occupational Health
  • Physical Therapy, Sports Therapy and Rehabilitation


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