Chromium

Chromium (Cr) is a hard, silvery metal which is a naturally occurring element. Chromium is an essential trace element in human nutrition because it enables glucose to be used. In large quantities it is toxic.

ME/CFS
No clinical trials have been carried out using chromium supplements for chronic fatigue syndrome or ME. In 2002, Sierpina et al. suggested that 200 mcg of chromium picolinate (taken with meals) may have the potential to reduce any reactive hypoglycemia that may aggravate symptoms, though they did not make a recommendation for its use in clinical practice.

Learn more

 * Linus Pauling Institute Micronutrient Information Center - Chromium
 * 29 Oct 2014, How I Recovered From ME/CFS, by John Bochenek in ProHealth.com (author writes of supplements he used in his recovery, including chromium)