Are you always tired?
Try having your vitamin D levels checked, then take vitamin D if you are deficient. The energy of our cells is produced in the mitochondria of our cells. Poor mitochondrial function has been implicated in fatigue.
The reviewed research examined the effect of vitamin D in individuals with fatigue and evaluated oxidative phosphorylation in two of the calf muscles (Sinha A,et al. 2013). Oxidative phosphorylation is one of the major energy producing pathways in the mitochondria.
The participants who were vitamin D deficient underwent magnetic resonance spectroscopy, and had their vitamin D levels checked before and after they were given vitamin D. They were also compared with a healthy control group which had the same tests done. After the vitamin D therapy, the phosphocreatine recovery half-time was significantly reduced in the vitamin D deficient participants which indicate an improvement in maximal oxidative phosphorylation (the energy pathway). This means that there is a link between vitamin D and the mitochondria in the skeletal muscles.
If you have fatigue, get your vitamin D levels checked. It could make all the difference. You can read more about the importance of vitamin D by clicking here.