People have long debated the correlation between vitamin D and sleep. However, a recent study shows that vitamin D levels may contribute to a sleep quality and quantity.

D’s and Zzz’s: The studies

[1] A study of 3068 men aged 68 and older showed that those with low vitamin D have lower sleep efficiency.

Among participants, 16 percent had low levels of vitamin D. To identify the possible influence of vitamin D over sleep, researchers controlled for several other factors, including age, season of the year, other health conditions, body-mass index, and both physical and cognitive function. They found that low levels of vitamin D were linked to several problems with sleep:

  • Low vitamin D increased the likelihood that participants experienced insufficient sleep, sleeping less than five hours a night.
  • Low levels of vitamin D were linked to lower sleep efficiency scores, and a greater chance of scoring below 70 percent. A healthy sleep efficiency score is generally considered to be 85 percent or higher.

Another article claims that vitamin D pauses the production of melatonin (the hormone that helps us sleep) so if taken at night, will disrupt our ability to get a good night’s rest.[2] Other studies[3] conclude that every human has a ‘sweet spot,’ a certain amount of vitamin D absorption that will result in a good night’s sleep. This suggests that too much or too little vitamin D could result in a restless night.

Myth or reality?

Studies thus far are showing that there could be a relationship between vitamin D and getting that good night’s sleep, but not enough data exists to suggest that vitamin D may actually be an effective or safe treatment of a low sleep efficiency score. Until we have more concrete data, it is unknown whether or not vitamin D may actually be able to help us catch our 8 house effectively.

Regardless of the many studies done on vitamin D and sleep, it seems that sleep is better when the body is in good health. Vitamin D is a part of maintaining optimal health and therefore, could play a role in a good night’s sleep. Sleep well, my friends.

Natalie Preddie is a Ddrops guest blogger. She is also a freelance writer who lives with her husband and dog in Toronto. They just had their first baby and couldn’t be happier! Natalie has been published in the Toronto Star, Star Touch Magazine, PAX Magazine, Vv Magazine,The Baby Post and her popular travel blog, The Adventures of Natty P. Natalie believes that travel is the best education possible and encourages family and friends to explore, discover and learn in order to grow. Natalie also believes in finding deeper solutions in mind/body instead of just treating symptoms. In 2014, Natalie won the Canadian Public Relations Society: Young PR Pro of the Year Award. This year, Natalie won Travel Writer of the Year 2015 for her series on Ontario’s Norfolk County.