What Vitamin Deficiencies Cause Sleep Apnea? Find Out Now

close up of a woman in deep sleep

What vitamin deficiencies cause sleep apnea? This question has piqued the interest of researchers and health professionals alike, as they seek to uncover connections between nutrient intake and sleep disorders

What Vitamin Deficiencies Cause Sleep Apnea?

Sleep apnea is a common sleep disorder that affects millions of people worldwide. Recent studies have revealed a correlation between sleep apnea and inadequate nutrition, with particular vitamins having an essential role in the progression and intensity of this condition. Find out below what vitamin deficiencies cause sleep apnea.

How Vitamin D Impacts Your Sleep

Vitamin D has been found to play a significant role in maintaining our body’s natural circadian rhythm or ‘central clock.’ Research suggests that vitamin D deficiency could be at the root of many diseases.

Vitamin D Deficiency and Sleep Disorders

  • Sleep Apnea: A study found that individuals with obstructive sleep apnea (OSA) had significantly lower levels of serum 25-hydroxyvitamin-D compared to those without OSA. This indicates a potential link between low vitamin D levels and an increased risk of developing OSA.
  • Insomnia: Insufficient amounts of vitamin D have been associated with poor sleep quality and difficulty falling asleep.
  • Restless Leg Syndrome: A study found that individuals with restless leg syndrome had lower levels of vitamin D compared to healthy controls, suggesting a possible connection between the two.

Improving Sleep Quality Through Vitamin D Supplementation

In addition to supplements, there are several ways you can increase your vitamin D intake naturally:

  • Spend time outdoors in sunlight (with proper sun protection).
  • Eat foods rich in vitamin D such as fatty fish, egg yolks, and fortified dairy products.

Other Vitamin Deficiencies That Affect Sleep

Vitamin deficiencies can have a significant impact on sleep quality, particularly for those suffering from sleep apnea. Apart from vitamin D, certain other vitamins are essential for good sleep quality and overall wellness.

Vitamin A

Research has shown that sleep apnea patients often have low retinol (vitamin A) levels. Retinol suppresses the growth of vascular smooth muscle, which is responsible for clogging blood vessels. This connection suggests that increasing your intake of vitamin A during the treatment of sleep apnea could potentially reduce its dangerous effects and improve cardiovascular health.

Vitamin E

Vitamin E supports immune health and cell function and helps protect cells from damage due to its antioxidant properties. It also plays a role in promoting better sleep quality. For individuals experiencing sleep deprivation caused by sleep apnea, vitamin E offers protection to the brain against associated memory loss.

Vitamin C

Vitamin C contributes to immune health and cardiovascular wellness, as it aids in collagen production within the body. Vitamins C and E, when taken together, have been shown to reduce the number of apnea episodes during sleep, improve sleep quality and lessen daytime drowsiness. 

Vitamin B6

Playing a vital role in immune health and cognitive development, vitamin B6 can also affect sleep patterns and dreams. A deficiency in this nutrient has been linked to depression and insomnia. It is conceivable that an absence of vitamin B6 may have a part in issues like mood disorders and sleep deprivation.

Vitamin B12

Lastly, vitamin B12 supports both cardiovascular health and brain function, making it an essential component for overall well-being. Deficiencies in this nutrient can result in insomnia, disrupted sleep patterns, or shortened periods of rest, all factors that may exacerbate existing cases of sleep apnea.


It is essential to know what vitamin deficiencies cause sleep apnea. That way, you can sustain proper vitamin levels in order to deter sleep apnea and other slumbering difficulties. Vitamin D deficiency has been linked to an increased risk of obstructive sleep apnea, while deficiencies in vitamin B12 and iron can also affect the quality of your sleep. 

Are you suffering from sleep apnea or any sleep issues? Contact our team of experts here at the Sleep & CPAP Center today to schedule your in-lab or in-home sleep study, CPAP, or Bi-PAP services.