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Not sure why you're being downvoted, so I created an account specifically to respond. I've had the same issue. Even when I take low doses of 400iu, vitamin D c

Not sure why you're being downvoted, so I created an account specifically to respond. I've had the same issue. Even when I take low doses of 400iu, vitamin D causes extreme anxiety and mood issues that only go away a couple of days after I stop taking it. I've had to completely cut it out and can't take supplements that contain it. I've also taken various brands so I would assume the additives would be different but who knows. If you search this symptom online, you'll find a lot of people with the same reaction but never any explanation. Definitely interested to see if anyone has had this same issue and was able to fix it. Anyway, just a word of caution to anyone reading. Because even 400iu makes me feel very uncomfortable. I don't want to know what would happen at 4,000iu.

Sunspark 2y ago
Out of curiosity, the various brands, were any of them in liquid form? The reason I ask is because it's possible to be intolerant or allergic to one of the filler ingredients in a tablet.
- vitanxiety 2y ago
  No, they weren't, and that's a good suggestion that I need to try.
  - OutOfHere 2y ago
    Get a well-rated softgel form without iffy ingredients like caramel coloring.
    - Sunspark 2y ago
      I think at this point, they should just go straight to liquid with an eyedropper, no gelatin capsule or anything in order to try and rule out as much as possible.
      - OutOfHere 2y ago
        The problem with an exposed liquid is that will definitely lose its potency a lot quicker. A softgel keeps the active ingredient somewhat protected from oxidation. It also depends on the level of antioxidant present in the liquid. This matters in the tail end of the bottle.
7839284023 2y ago
Exactly the same issue! I have been trying to increase my Vitamin D levels for 15 years now but I just can't tolerate this supplement. Lower dosage: ~500-1000 IE -> side effects come after around 3-4 days of daily intake. Higher dosage: ~5000 IE -> side effects after a few hours. I tried following most advice over here in the past but it did not work: https://web.archive.org/web/20240226035822/https://vitamindwiki.com/Vitamin+D+Cofactors+in+a+nutshell https://web.archive.org/web/20240226035822/https://vitamindw... I'll just live with my low blood Vitamin D levels.

Sunspark 2y ago

Out of curiosity, the various brands, were any of them in liquid form? The reason I ask is because it's possible to be intolerant or allergic to one of the filler ingredients in a tablet.

vitanxiety 2y ago
No, they weren't, and that's a good suggestion that I need to try.
- OutOfHere 2y ago
  Get a well-rated softgel form without iffy ingredients like caramel coloring.
  - Sunspark 2y ago
    I think at this point, they should just go straight to liquid with an eyedropper, no gelatin capsule or anything in order to try and rule out as much as possible.
    - OutOfHere 2y ago
      The problem with an exposed liquid is that will definitely lose its potency a lot quicker. A softgel keeps the active ingredient somewhat protected from oxidation. It also depends on the level of antioxidant present in the liquid. This matters in the tail end of the bottle.

7839284023 2y ago

Exactly the same issue! I have been trying to increase my Vitamin D levels for 15 years now but I just can't tolerate this supplement. Lower dosage: ~500-1000 IE -> side effects come after around 3-4 days of daily intake. Higher dosage: ~5000 IE -> side effects after a few hours. I tried following most advice over here in the past but it did not work: https://web.archive.org/web/20240226035822/https://vitamindwiki.com/Vitamin+D+Cofactors+in+a+nutshell https://web.archive.org/web/20240226035822/https://vitamindw... I'll just live with my low blood Vitamin D levels.