50,000iu daily vs weekly

by Kim

I have read your site and comments many times and find it to be very informative!

I have a Vit D level of 20 and have been suffering with muscle cramps for many weeks now.
Although I am grateful my Dr. Checked my level he is clearly not aware of how deficient this is and has not put 2 and 2 together! My symptoms and my Vitamin D level.

He advised me to take 2000iu daily which I now know from reading this is not nearly enough!

My question is: at this level am I considered to be "mildly" or " severely" deficient? Should I take 50,000iu daily vs weekly? I Was not able to figure this out after searching this site. My other question is: if I'm to take 50,000iu weekly does it make a difference if I take 1 dose at the 50,000 or break it up and take it daily to equal 50,000iu weekly? Also, is there any reason why i couldn't take more than 50,000iu weekly?

I truly appreciate your time!


Comments for 50,000iu daily vs weekly

Average Rating starstarstar

Click here to add your own comments

Aug 05, 2022
by: Anonymous

My husband was prescribed to take Vitamin D 50,000iu once a week for 3 months. The pharmacy made an error and prescribed once a week. He took a 3 month supply in 13 days. He has been sick since... He has body, joint and his hands and feet are burning, his skin is flakey and he's suffering from a UTI. I was told by the doctor that it's not possible to still be in his system. Please help!!!

Apr 27, 2022
Kim RN is NOT a licensed prescriber!!!! NEW
by: CG

It is illegal and unenthical for a Registered Nurse to prescribe or dole out prescriptive advice without the proper education and training. There are numerous incorrect statements in her reply. As a Advanced Practice Registered Nurse with a terminal degree, years of experience as an independent primary care provider, a DEA license and prescriptive authority, I take offense at the misinformation and malpractice she is providing. LEAVE the diagnosis and treatment plan to those who are properly trained and legally able to provide a diagnosis and prescriptive medications!!!!

May 20, 2020
a title NEW
by: Anonymous

A registered nurse is no replacement for a prescribing medical practitioner. Please see your Dr about side effects of vitamin D therapy.

Dec 10, 2012
Daily, weekly, monthly
by: Kerri Knox, Registered Nurse

Hi Kim,

It doesn't really matter if a vitamin d level is mildly, moderately, or severely deficient. These are just 'subjective' terms that will be defined differently by different people. The only thing that really matters is that your vitamin D level is low and you need to bring it up to optimal.

It also doesn't matter if you take your dose daily, weekly, or even monthly. It's fat soluble and so will make no difference. Although it's 'safer' to take smaller doses when you are first starting just to see how you react.

Especially if you are already having muscle cramping, vitamin d will almost certainly make this worse. So, please see my page on Magnesium and Vitamin D to see how to avoid this and avoid any other problems that may be triggered by taking vitamin d when you almost certainly already have moderate to severe magnesium deficiency.

Kerri Knox, Registered Nurse

Click here to add your own comments

Return to 50000 IU's of Vitamin D.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.


Search this Site
Custom Search


Vitamin D Fact Sheet
Free Vitamin D Fact Sheet by Getting
My Newsletter