• image.alt
  • With Mayo Clinic physical medicine and rehabilitation specialist

    Edward R. Laskowski, M.D.

    read biography

Mayo Clinic Health Manager

Get free personalized health guidance for you and your family.

Get Started

Free

E-Newsletter

Subscribe to receive the latest updates on health topics. About our newsletters

  • Housecall
  • Alzheimer's caregiving
  • Living with cancer

Question

Insulin: Can it boost athletic performance?

Can insulin injections improve athletic performance for an athlete who doesn't have diabetes?

Answer

from Edward R. Laskowski, M.D.

Athletes who have diabetes may use insulin as part of a diabetes treatment plan. Insulin has been banned from use by other amateur and professional athletes, however.

For athletes, misuse of insulin may potentially improve endurance, promote the development of muscle mass and speed muscle recovery — but that's not the whole story. In addition to the legal and ethical issues surrounding performance-enhancing drugs, misusing insulin poses serious health risks.

For example, athletes who misuse insulin may experience low blood sugar (hypoglycemia). Left untreated, low blood sugar can lead to seizures or loss of consciousness. In severe cases, low blood sugar can be fatal. Misusing insulin may also lead to insulin resistance, insulin allergy and other potentially serious problems.

If you're hoping to gain a competitive edge, don't look to insulin or other performance-enhancing drugs. Instead, adjust your training program to safely increase your strength and stamina.

Next question
Energy drinks: OK for athletes?

AN01903

Aug. 26, 2008

© 1998-2010 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.com," "EmbodyHealth," "Enhance your life," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

Print Share Reprints

Text Size: smaller largerlarger