Clinically proven mtDNA mutations are not common in those with chronic fatigue syndrome.
Schoeman, Elizna M, Van Der Westhuizen, Francois H, Erasmus, Elardus et al.·BMC medical genetics·2017
This study examined the DNA inside the energy-producing parts of cells (mitochondria) in 93 ME/CFS patients from the UK and South Africa. The researchers looked for specific mutations that are known to cause mitochondrial disease. They found that these known harmful mutations were not present in the ME/CFS patients studied, suggesting that ME/CFS is not caused by these well-established mitochondrial mutations.