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This Underrated Vitamin Could Help You Get Higher Quality Sleep, Study Says*

This Underrated Vitamin Could Help You Get Higher Quality Sleep, Study Says* Image
  • Posted on 03rd Aug, 2022 12:05 PM
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And 41% of U.S. adults don't.

By now, most of us know the basics of how to get good sleep: Stick to a schedule, stop caffeinating early in the day, and keep your bedroom cool and dark. But considering that an estimated one in three Americans still aren't getting enough rest on a regular basis, researchers continue to investigate new and novel sleep tips. One of the latest to show promise in a scientific review? Supplementing with vitamin D.*

Analyzing the link between vitamin D and sleep.

This meta-analysis published in the journal Nutrients included 19 studies—13 of which were randomized controlled trials, considered a research gold standard. Combined, these studies tracked the vitamin D levels and sleep of 9,397 people of all ages and backgrounds.

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Optimized vitamin D3 with absorption technology for whole-body health*

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In reviewing this body of research, Myriam Abboud, Ph.D., a nutrition researcher at Zayed University in the UAE, found that there did appear to be a link between adequate vitamin D levels (i.e., vitamin D sufficiency) and high-quality rest.* Specifically, those who took a vitamin D supplement scored better on the Pittsburgh Sleep Quality Index—a list of questions that assesses sleep quality over a one-month period.*

"In conclusion, the evidence presented in this review suggests a beneficial role of VDS [vitamin D supplementation] in enhancing sleep quality,"* Abboud writes in the meta-analysis.

This suggests that in addition to other sleep-promoting habits, making sure your vitamin D levels are up to snuff (30 ng/mL is the cutoff for insufficiency to avoid; ideally at least 50 ng/mL) may go on to support your slumber.*

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How are they connected?

There are a few ways that vitamin D and sleep could be connected. For starters, there are binding sites for vitamin D on nearly every cell in our body—including ones in our brain that affect sleep.* The fat-soluble vitamin also appears to play a role in the production of melatonin—the "hormone of darkness" that tells our bodies when it's time for bed.* Exposure to sunlight suppresses the production of melatonin but encourages the production of vitamin D, so that's another potential link.

While researchers are pretty sure that healthy vitamin D levels support healthy sleep (and vice versa), this new analysis notes that we still have more to learn about how exactly vitamin D supplementation plays into things.* However, it's worth noting that there are plenty of other reasons to take a vitamin D supplement, beyond sleep support.*

Due to factors like diet and geography, many of us don't get adequate amounts of vitamin D from sunlight and diet alone. Taking a daily supplement of 5,000 IU of vitamin D3 can get levels back to that optimal range—and support bone and muscle healththyroid healthoral health, and much more in the process.*

The best part is that vitamin D supplements are easy to incorporate into your life. While other restful habits like staying off electronics at night and limiting stress levels take effort, taking a D3 gelcap is something you can basically do in your sleep.

The takeaway.

If you're one of 41% of U.S. adults who are vitamin D insufficient, your sleep quality could be suffering according to a new Nutrients meta-analysis.* Count this as yet another reason to take a daily vitamin D supplement. Here are our top picks.

vitamin D3 potency+
★ ★ ★ ★ ★
★ ★ ★ ★ ★
(64)
vitamin D3 potency+

vitamin D3 potency+

Optimized vitamin D3 with absorption technology for whole-body health*

vitamin D3 potency+

vitamin D3 potency+

Optimized vitamin D3 with absorption technology for whole-body health*

★ ★ ★ ★ ★
★ ★ ★ ★ ★
(64)
vitamin D3 potency+
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