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What are side effects of taking L-carnitine?

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L-carnitine is one form of carnitine, which helps your body make energy. Some people take it as a supplement to boost athletic performance, even though there is no proof that it helps. L-carnitine supplements can sometimes cause nausea, diarrhea, cramps, or vomiting. High doses can make you smell "fishy." Doctors don’t recommend it for women who are pregnant, because of lack of evidence about its safety.

From: L-Carnitine WebMD Medical Reference

SOURCES:

Fundukian LJ ed, , third edition, 2009. The Gale Encyclopedia of Alternative Medicine

Linus Pauling Institute at Oregon State University: "L-Carnitine."

Memorial Sloan-Kettering Cancer Center web site: "About Herbs: Carnitine."

National Center for Complementary and Alternative Medicine web site: "Herbs at a Glance: Carnitine."

Natural Medicines Comprehensive Database web site: "Carnitine."

National Institutes of Health: "Carnitine."

Mochamat, "A systematic review on the role of vitamins, minerals, proteins, and other supplements for the treatment of cachexia in cancer: a European Palliative Care Research Centre cachexia project. 2017 J Cachexia Sarcopenia Muscle."

Delaney CL, "A systematic review to evaluate the effectiveness of carnitine supplementation in improving walking performance among individuals with intermittent claudication." 2013  Atherosclerosis.

Reviewed by Carmen Patrick Mohan on May 12, 2017

SOURCES:

Fundukian LJ ed, , third edition, 2009. The Gale Encyclopedia of Alternative Medicine

Linus Pauling Institute at Oregon State University: "L-Carnitine."

Memorial Sloan-Kettering Cancer Center web site: "About Herbs: Carnitine."

National Center for Complementary and Alternative Medicine web site: "Herbs at a Glance: Carnitine."

Natural Medicines Comprehensive Database web site: "Carnitine."

National Institutes of Health: "Carnitine."

Mochamat, "A systematic review on the role of vitamins, minerals, proteins, and other supplements for the treatment of cachexia in cancer: a European Palliative Care Research Centre cachexia project. 2017 J Cachexia Sarcopenia Muscle."

Delaney CL, "A systematic review to evaluate the effectiveness of carnitine supplementation in improving walking performance among individuals with intermittent claudication." 2013  Atherosclerosis.

Reviewed by Carmen Patrick Mohan on May 12, 2017

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How does L-carnitine interact with other medicines?

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