Determination of Optimal Daily Magnesium Intake among Physically Active People: A Scoping Review

Toshiki Maeda*, Yuka Hamada, Shunsuke Funakoshi, Rena Hoshi, Masayoshi Tsuji, Aiko Narumi-Hyakutake, Mai Matsumoto, Yuya Kakutani, Yoichi Hatamoto, Eiichi Yoshimura, Motohiko Miyachi, Hidemi Takimoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Summary Little is known about the optimal daily magnesium (Mg) intake for individuals with high levels of physical activity. The aim of this study was to clarify the optimal dietary Mg intake for people with high levels of physical activity in a scoping review. In this review, we searched MEDLINE and Japan Medical Abstracts Society for studies published up to May 31, 2020. We conducted two searches, one for studies using gold standard measurement methods such as the balance method and factorial calculation (Search 1), and the other for studies using estimation from daily food intake (Search 2). We also performed a meta-anal-ysis of studies that compared the Mg intake among physically active people with the Mg intake among controls. After the primary and secondary screening, 31 studies were included in the final review. All of the included studies examined professional or recreational athletes. We found no studies that examined the optimal intake of Mg using gold standard measurement methods. The Mg intake among physically active individuals was below the recommended dietary allowance in most studies. In five studies that conducted meta-analy-ses, physically active individuals had significantly higher intakes of Mg than controls, although these levels were still below the recommended dietary allowance. The present review revealed that evidence regarding the optimal daily magnesium intake is currently scarce, and further studies are needed.

Original languageEnglish
Pages (from-to)189-203
Number of pages15
JournalJournal of Nutritional Science and Vitaminology
Issue number3
Publication statusPublished - 2022


  • ath-lete
  • magnesium
  • physically active people
  • recommended dietary allowance
  • scoping review

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics


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