- Muscle cramps. The MSD Manuals. www.msdmanuals.com, last full review/revision July 2016
- Muscle cramps. BMJ Best Practice. bestpractice.bmj.com, last updated 10 November 2017
- Muscle cramps. PatientPlus. patient.info/patientplus, last checked 28 January 2016
- Muscle cramps. American Academy of Orthopaedic Surgeons. orthoinfo.aaos.org, last reviewed June 2017
- Personal communication, Dr Leon Creaney, Sports & Exercise Medicine Consultant, 15 February 2018
- Sports nutrition. American Academy of Orthopaedic Surgeons. orthoinfo.aaos.org, last reviewed December 2014
Reviewed by Rachael Mayfield-Blake, Freelance Health Editor, March 2018
Expert reviewer, Dr Leon Creaney, Sports & Exercise Medicine Consultant
Next review due March 2021
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