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  1. r/insomnia on Reddit: PSA/Update: Vitamin D in doses of 4000

    I upped my vitamin D significantly during the pandemic to boost my immune system, and that's when my insomnia really began. I blamed my sleep problems on everything except the vitamin …

  2. Magnesium glycinate and vitamin d3 are causing insomnia

    I recently started taking 100mg of Magnesium Glycinate every two days and 50,000 IU of Vitamin D3 once per month. However, it's causing insomnia....

  3. Could vitamin D help insomnia? - Healthline

    May 8, 2025 · Vitamin D may be affecting your sleep. Many people do not get enough of this essential vitamin from their diet or from spending time in the sun. A vitamin D deficiency could …

  4. Can Supplementing Too Much Vitamin D Cause Insomnia?

    Jan 5, 2019 · Why Would a Large Dose of Vitamin D Cause Insomnia? So how can this be? How can Vitamin D cause insomnia? When I supplemented I took 5,000 IUs, which is way higher …

  5. Vit D Causing Terrible Insomnia : r/VitaminD - Reddit

    Vitamin d cancels out melatonin production. I also got pregnenolone labs and was super deficient and it helps greatly for sleep in general but haven't tried a small dose of vitamin d yet . Even …

  6. Vitamins and insomnia: Correlation and more - Medical News Today

    Oct 22, 2025 · Vitamins and minerals are crucial to overall health, including sleep. However, some people claim that some vitamin supplements can worsen sleep. Learn more here.

  7. How Vitamin D Affects Sleep

    Jan 23, 2024 · Vitamin D is a key nutrient that supports many of the body’s functions, including sleep. Learn how it influences health and sleep and how to get enough.

  8. Can Too Much Vitamin D Cause Insomnia? - Biology Insights

    Aug 28, 2025 · Individuals concerned about vitamin D levels or experiencing persistent insomnia should consult a healthcare professional. A doctor can assess symptoms and recommend …

  9. Vitamin D and Sleep: Unveiling the Crucial Connection

    Aug 26, 2024 · A healthcare professional can assess your individual vitamin D levels, consider any underlying health conditions, and provide tailored recommendations for optimizing your …

  10. A Psychiatrist's Vitamin D Sleep Guide - Sleep

    May 21, 2025 · Discover how vitamin D shapes your circadian rhythm, boosts melatonin, and strengthens bones, plus learn sunlight strategies, safe supplements, and testing tips for better …