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A Common Sign Of Vitamin D Deficiency

A Common Sign Of Vitamin D Deficiency post image

Around 60% of people may have a vitamin D deficiency.

Muscle fatigue is a common sign of vitamin D deficiency, research finds.

Vitamin D is vital for enabling the muscles to work efficiently.

Low levels of this vitamin are linked to poor energy and tiredness.

Taking vitamin D supplements helped people in the study to feel much less tired.

Vitamin D is also found in oily fish, egg yolks, fortified cereals and some margarine spreads.

The study examined 12 people with a severe vitamin D deficiency, before and after treatment.

Participants’ muscles were scanned to check their response to exercise.

The results showed that those taking vitamin D supplements for 10-12 weeks felt much less tired.

Dr Akash Sinha, the study’s first author, explained the results:

“The scans provided a unique window into what is really going on in the muscle as it works.

Examining this small group of patients with vitamin D deficiency who experienced symptoms of muscle fatigue, we found that those with very low vitamin D levels improved their muscle efficiency significantly when their vitamin D levels were improved.”

The fatigue they were feeling is likely due to problems in the body’s mitochondria.

Mitochondria are the ‘power stations’ within each cell in our body.

Without vitamin D the mitochondria cannot work efficiently.

After supplementation, participants’ mitochondria recovered more quickly from exertion.

Dr Sinha said:

“We have proved for the first time a link between vitamin D and mitochondria function.

Of the patients I see, around 60% are vitamin D deficient and most people living north of Manchester will struggle to process enough vitamin D from sunlight alone, particularly during winter and spring.

So a simple vitamin D tablet could help boost your energy levels – from within the cells.”

The study was published in the Journal of Endocrinology (Sinha et al., 2013).