Vitamin D Health Benefits

| Modified on Apr 26, 2021

Seasonal Affective Disorder
Posted by Jan (Mi) on 10/11/2018

Seasonal Affective Disorder ..SAD

I am totally convinced that I am suffering from SAD. I was wondering if anyone had any suggestions. I'm looking into getting a therapy light and also wondered if anyone had any suggestions on that. I've searched the internet and there are so many. I do supplement with vitamin D, magnesium, b complex and all the rest of the vitamins and minerals. I try to eat healthy most of the time and exercise (although I need to do more). I do miss the sunshine:(

Cofactors Critical to Vitamin D
Posted by Art (California ) on 04/21/2018 928 posts
5 out of 5 stars

Vitamin D and Why it May Not Be Working For You as Well as it Should

Many people take vitamin D because it is noted for many health benefits in hundreds of studies, but for some reason, some people do not seem to be able to obtain benefit from vitamin D. Many people are aware that there are cofactors for vitamin D such as boron, zinc, magnesium, vitamin K-2 and calcium, but we often do not realize how important these cofactors can be in terms of helping vitamin D to be all it can be for our health.

On that note, here is a very brief and easy to read article that clearly and simply explains why magnesium is absolutely needed in order for vitamin D to completely do the job it was meant to do in our bodies.

On a related note, the following very short abstract describes how not enough vitamin D and / or not enough magnesium can potentially create health problems for us!


Pain, Fibromyalgia, Shingles
Posted by Hisjewel (Usa) on 03/29/2018
5 out of 5 stars

I learned so much from that Vitamin D book Robert Henry suggested that I read early 2017.

And I gave the D3 a Purposeful second go because of it. However for some reason I seem to soon forget the necessity of a supplement when I am feeling better.

I went on a vacation and when I returned I had forgotten why I was taking the Vitamin D. All I knew was once again my bones were achy, I started back on the MSM. Then I came across more information that stated that fibromyolgia is a Vitamin D3 deficiency. When I take the 10,000 to 20,000 IU D3 at least 5 days a week, I find it very energizing and when I get up in the morning I automatically stretch. When I don't take it, I do not get that stretch. I am 66 so I guess I need help to stretch.

And also other readings mention that Vitamin D3 taken at a 50,000 IU for 3 days lightens the pains of shingles. And I did try it and after 3 days tested it out by eating a good old peanut butter sandwich, I had no breakout and no pain.


Reader Feedback
Posted by Dorothy (Sydney) on 11/24/2017

I got depressed on cod liver oil. Subtle blue feeling. Stopped taking and it went away. I am now taking D3 but with all the required co-factors. Mag, Bs, K, etc. Ok so far.

Reader Feedback
Posted by Valerie J. (New Zealand ) on 10/28/2017

Deficiency in D causes a deficiency in B vitamins which are needed for nerves, and mood. If you are low in B bits to begin with and supplement with D, because D stimulates repairs in the body, and Bs are also needed in higher amounts for tissue and nerve repair, a B deficiency can easily crop up. The fact your moods were affected is not a bad thing and neither does it suggest it was D vitamin causing it but rather more the fact you're probably deficient in B's too. In fact, B Vitamins are usually made by the microbes in the gut, but if those microbes get deficient in D, they die off and B vitamin production declines. It's the main reason why we gain weight in winter and drop a few pounds in Summer. Conversely studies show that when you supplement with adequate doses of D, you lose weight. That's becausevin addition to feeding microbes that make B's, it also increases insulin sensitivity, AND reduces insulin levels as a result. [Studies done in post menopausal women who had PCOS)

Reader Feedback
Posted by Valerie (New Zealand ) on 10/28/2017

For the most part, most people are suffering D deficiency because of lack of sunlight actually. Hyperactive Parathyroid is due to boron deficiency from my reading. I'd say that most people out there know if they have not been out in the sun enough when considering the whole vitamin D issue and instinctively know they need it. Scaring people with your personal experiences (rare disease) is just not helpful

General Feedback
Posted by Valerie (New Zealand) on 10/28/2017

Calcification in tissue occurs in vitamin D deficiency. If you don't get enough, calcium is pulled from bone and the blood levels are high anyway. Taking vitamin D in sensible doses prevents this. It's the people posting about the higher doses and claiming calcium is high that really get me. Yes mega doses over long periods are dangerous. But the RDI is beyond a joke and causing many diseases. For one, if you get calcification Of arteries in deficiency then take doses to address that deficiency, stands to reason that calcium in arteries will be pulled out and put back into bone. And to do this it needs to be in the blood first. Would be handy to know what levels of blood calcium are TOO high, but I would say that when its dissolved from the artery walls with optimal doses, it goes into the blood to be cleared out and has a snowflakes chance in hell if actually adhering to much tissue thereafter. Even the kidneys would be shoving that stuff out. I doubt it could stick to ureters or kidneys any more than it could an artery. Heck calcium levels would have to be dangerously high or way above normal levels.

Cod Liver Oil
Posted by Valerie (New Zealand) on 10/28/2017

NOTE: Some people are unable to convert betacarotene to retinol efficiently so if they rely on this variety alone for Vitamin A can become deficient in it. I'd say those that are vegan and have this issue need to find an oil containing retinol to supplement with. The fish Oil or cod liver oil variety is great source for non vegans or non vegetarians and needs no conversion.

Cod Liver Oil
Posted by Valerie (New Zealand ) on 10/28/2017

I think Less vitamin A is required than vitamin D actually and it's easier to reach vitamin A toxicity with Cod LIver Oil, but that the amount of d in the Oil is quite low, and not enough to address Vitamin D deficiency so often has little effect for people suffering symptoms of D deficiency. You are far better off taking higher doses of D and a fish oil capsule. I noticed some D is placed into Safflower Oil Capsules. The fish Oil (Omega 3s) would balance out any daily omega 6's. I think vitamin A is at lower doses in some Fish Oils making it less toxic.

Posted by Hound (California) on 04/01/2017
5 out of 5 stars

I had a wart on my thumb. It was on the joint which made removing it difficult. Tried for years to get rid of it using compound w and sacylic acid. When I started taking 10,000 IU per day of Vitamin D3 after discovering I was deficient on a serum D blood test, the wart disappeared and never returned.

Reader Feedback
Posted by Art (California ) on 09/18/2016 928 posts

Vitamin D is pretty unique to each individual and there is not a one dose fits all application for it. Generally if you carry a lot of body fat it can require significantly more vitamin D to reach a specific 25 OH d serum level than a person who has low body fat even though their weight may be equal. If you are trying to reach a specific 25 OH d level in the optimum range, the only way to do that and be sure is by having a 25 OH d test done. These can be done by mail with a pin prick test directly with a lab. This would be very important if you are trying to treat a specific health issue by getting your 25 OH d level into the upper end of the reference range (reference range: 30 ~ 100 ng/ml).

Some cancer studies suggest that optimal anti-cancer activity may occur around the 80 ng/ml level. Dr. Cannell suggests working your serum level up toward the upper end of the range for autism and even above if improvement continues, and then decrease the dose when no further improvement is seen, but again that would require regular testing by your doctor.

Some people just require more vitamin d than others to reach a specific serum level so it is more important to take whatever dose is needed to reach the desired serum level and test to be sure rather than choose a dose that may or may not achieve the proper 25 OH d serum level for you.


Reader Feedback
Posted by Anna (Oh) on 09/18/2016

Yeah, generally: one should take between 13 I.U and 34 I.U of vitamin D3 per pound of body weight. I'm pretty sure I notice that the 'dry' form of D3 is more potent than the lanolin kind, too. Joseph Mercola once wrote that some organization or something thought: we can take up to 35 I.U per pound of body weight. I've done some of my 'homework' though, and found out: that's too high.

Dr. Cannell's Vitamin D Newsletter
Posted by Wendy (London, England) on 03/31/2016

I'm surprised by the article which says cod liver oil is poison.

My husband had severe back pain to the point where he could hardly walk when he was around 30. He read at the time that cod liver oil would be beneficial so he started to take a dessertspoon full each day and within 3 months the pain was gone. He was some twenty or so years later, diagnosed with Ankylosing Spondylitis through a problem with he eye which caused the back pain.

I won't say he never had another twinge but I could count on one hand the times this has happened. He has continued with the cod liver oil everyday of his life since and he is now 72 years of age.

I too take a capsule as I couldn't take it off the spoon. I am 68 and thank God I also can still get around without any arthritis.

I will take the point of Vit A interfering with Vit D as I personally have problems with chronic coughing and are upping my dose of Vit D to 4,000 IU per day and haven't been doing it long but have noticed a difference.

Leg Pain
Posted by Toni (Maryland) on 11/10/2015
1 out of 5 stars


The doc likely prescribed you synthetic Vitamin D2. You will greater benefit from taking natural Vitamin D3. Study the research. D2 eventually has a negative affect.

General Feedback
Posted by Robert Henry (Ten Mile , Tn) on 08/23/2015

HI U KT, , , , , , , , , , , , , ,


The sun rays that produce Vit D best, do so between 10 am and 2 pm and you only need 30 minutes.

Other than Magnesium, Vit D is probably the best supplement you can take. Of course, you must do a quality D-3 and not the synthetic D-2 that Big Pharma makes.

Kit, I love you, but you got to enroll in my reading plan. Read and when you get tired, read some more. Knowledge is what will keep you healthy if you follow what you learn.


General Feedback
Posted by KT (Usa) on 08/22/2015

I would guess not getting enough sunlight. I read that you only need fifteen minutes a day, several days a week to get what you need. Too many are inside in front of a computer.

Vitamin D supplements are reported to be the most toxic of all vitamin supplements and should be used with caution. (Nutrition Almanac)

General Feedback
Posted by Myway (Usa) on 08/21/2015

I have a real interest in understanding why so many people around the world are deficient in Vitamin D. Would anyone like to chime in on this critical health problem?

I am not deficient but every other person I meet who has had their labs done, are terribly deficient.


MyWay :D

Vitamin D Side Effects
Posted by KT (Usa) on 08/20/2015

Hi Gemma, I would suggest getting some magnesium powder from the HF store. Dissolve about 1/4 tsp. in OJ and drink it with or after a protein meal. Preferably after having eggs for breakfast.

Magnesium binds with protein before it is absorbed (Nutrition Almanac). I have a long history of injuries, reported degerative disc disease and joint pain that has been relieved after adding the magnesium powder to my diet. Staying away from contributing factors such as hidden sources of MSG (a nerve stimulant) is important but with today's tainted food supply it can be difficult. Sometimes the binders and fillers in supplements contain hidden sources. I cannot ingest a gelatin capsule without problems. The capsule alone contains 11-13 mg. of MSG. I had been told that magnesium can offer some protection against the toxic effects of MSG.

It would also be very beneficial for you to get a few minutes of sunlight every day. It is reported in a Nutrition Almanac that 15 min. a day, several days a week does not pose a toxic threat and could provide you with what you need for health. The almanac also reports the sun coverts cholesterol to vitamin D.

Vitamin D Side Effects
Posted by Gemma (Wales) on 08/19/2015
0 out of 5 stars


I took 10,000iu of vitamin D3 plus a k2 supplement for 3 weeks and developed nasty side effects. My joints all started clicking, my knees became painful and my muscles started twitching. I could also feel a weird sensation in my teeth and had lower back pain. A muscle allergy tester diagnosed calcium deposits in all my joints and tendons and recommended phytoplankton 3 times per day and ACV 3 times per day. I have been taking these for 2 weeks and have had slight improvement (I'm not twitching much anymore). I added a magnesium oil yesterday which appears to have helped my back pain.

But my joints still click (everywhere! ) and my tendons are painful. Other people on vitamin d forums have mentioned their joints clicking too. Have you got any suggestions? Should I try the chanca piedra? I'm scared to put any supplements into my body anymore.

Best Wishes.


Posted by Whisperingsage (Northeastern California) on 05/20/2015 47 posts

No, vitamin D is not a mouse poison, warfarin is a mouse poison, also known as coumadin, often used in rehab hospitals, warfarin is known to interfere with vitamin K1 function, Vitamin k1 is the greens vitamin needed for proper functioning of platelets and clotting. Vitamin K1 is converted to vitamin K2 in grass fed milk and meat and eggs, and is valuable for tooth repair and development and skeletal development- and making sure vitamin D works as a team with calcium (along with A, and magnesium) as it guides calcium to bones and ensures proper functions as it pulls it out of soft tissues like arteries and nerves and improper places. K2 prevents heart disease. K2 could safely be used instead of warfarin in knee and hip replacement patients.

Vitamin D From Sun
Posted by Robert Henry (St George Island, Fla.) on 05/04/2015
5 out of 5 stars

HI U GOOD FOLKS DOIN, , , , , , , , , jus came in from being in the sun for about 2 hours on this gulf beach. There was not a cloud in the sky and I figure we got about 50,000 iu units of Vitamin D 3. And will go out for more later.

A number of years ago the FDA said all you needed was 800 iu units a day but lately they have raised this to 2000 iu. Our Anti-Aging Knoxville doctor says you should supplement in the winter with 50,000 iu units a day every other day. Our Progressive folks in Atlanta say 20,000 a day for a large adult.

Here is a URL that explains how the sun makes Vitamin D 3 by shining on your skin capillaries.

When you supplement, then beware of Vitamin D2 because it is not natural and is synthetic and is a waste of your time.

Another fallacy is to get your sun in the early morning or late afternoon. That is bull. The rays you need for Vitamin D are at high noon. You just don't need to stay as long and don't use sunscreen. Getting a tan and making Vitamin D are two different things.

Use sunscreen if you are going to be out all day. That is a no brainer. Like the authors of the latest health book I am reading said, medical science is not fact, it's just conclusions from a basis study. If it a law that God came up with, then buy in, otherwise, be leery of yo fellow man's opinion. If it's a natural law, then it never changes. So much of medical facts change:i.e. don't eat eggs, yeah now it's OK to eat eggs.... don't eat fat, yeah now it's OK to eat fat. Drink coffee, no don't drink coffee. You know the story.

Your best bet is to grow veggies or buy from farmers that are good stewards of the land.

Read good health books, take a break and then read some more. Your health is largely dependent on your knowledge. Folks on EC help, but even weigh what they say.


Vitamin D Side Effects
Posted by Myway (Wilmington, De) on 12/20/2014

High doses of Vit D will deplete your magnesium so, I would suggest magnesium chloride in liquid form. Add the suggested amount in a very large glass of water and sip it throughout the day to get maximum absorption and reduce chances of diarrhea. The hard pills generally are not absorbed well from what I've read. Good Luck.

Vitamin D Side Effects
Posted by Heli (New York) on 12/20/2014
0 out of 5 stars

My Vitamin D level is very low and my doctor told me to take vitamin D. I started vitamin D3 and I have muscle pain. I started with Magnesium 500mg and I was ok. I am not sure what kind of Magnesium I can take with vitamin D. Magnesium Citrate or Magnesium Chloride or other kind of Magensium. Please help

Posted by Mary (Usa) on 12/09/2014

Be very careful with vit d. Look up USDA vit d as it is a mouse poison.

Posted by Rebel (Somewhere, Usa) on 11/06/2014

Hello everyone. I was wondering if anyone on here has any reports of mega dosing with vitamins.

I ran across a book on Amazon that talks about super mega doses of Vit D3. There are 436 reviews and 296 of them are 5 star highest rating. Some of these reviews are impressive if they are true.

I read earlier on here EC where Timh, had said he believed that vit D3 needed to be supplemented with Vit K and this book seems to mention that as well. It is called something like The miraculous results of very high vitamin D......... and the title goes on forever.

This need not be a Vitamin D response only, I would like to know if anyone has supplemented with ANY VITAMIN in mega doses and their results. I have heard on the Food Matters DVD that Niacin in super large doses cures depression.

Parathyroid Tumors
Posted by Sam (Miami, FL) on 10/01/2014

Always check your vitamin D and blood calcium levels before supplementing. If you are 50 +- and your calcium is high, even just a little bit and vitamin D low, check site BEFORE supplementing vitamin D. It is very important to exclude parathyroid tumor.

Sleep Problems
Posted by Mt (Ottawa, Ontario) on 12/18/2013

It looks as a vitamin D deficiency can mess up your sleep. Bad sleep is preventing the body from self healing. The link below may give you more details. If interested you may also watch one of the videos.

I feel as people in developed country are missing a lot the sun benefits. Most of the time you are inside and the windows have UV blockers and when you go out you put sunscreen. Also winter is sometimes too long. I am not sure that D3 intake will fix the missing vitamin D in the body(without messing up something else) but it is the option we have now -at least for the long winter season.

D3 Overdose Detox Remedies
Posted by Anon (Anon) on 03/17/2013

Hi, Magnesium salt baths would help (epsom salts). Excess d3 causes kidney stones so watch out for this.

D3 Overdose Detox Remedies
Posted by Hesham (Kuwait) on 03/16/2013

Dear Ted, my mother toke overdose off d3 by mistake and now she is sufering from the toxity of d3 "870 nmol". She is in the hospital now given the treatment for lowering the calcium. How can we detox d3? Kindly help ASAP

General Feedback
Posted by Robert Henry (Ten Mile, Tn Usa, Tn Usa) on 02/17/2013

MARY, you know not of what you speak. Name me one vegetable that has vitamin D in it except a mushroom. ====ROBERT HENRY=====

General Feedback
Posted by Mary (Shelton, Wn. Usa) on 02/17/2013

Vit. D(3) is not a vitamin but a hormone. There are 4 ways to get vitamin (hormone) d3:

#1 sun, #2 veggies, #3 fish oils like salmon, codliver, sardines #4 made from lanolin, which includes sprays, liquids, lotions, pills and mouse poison.

One must be very careful taking d3 as it stays in the liver for 3 months, causes the blood to thin, and allows the calcium to get into the blood stream causing clogged arteries, calcium to deposit anywhere it wishes. Look it up.

Vitamin D Side Effects
Posted by Spunkymunky (Jabba Wankaleela, Shoobiedoobiedahdahdee) on 02/14/2013

The reason you were experiencing that is because a) You were taking D2 or b) You're not taking magnesium with it. Look up magnesium, vitamin D. Vitamin D creates a magnesium deficiency FAST, if you don't have enough magnesium as it is you'll get immediate side effects. It's not the D itself, it's the lack of magnesium. Also, if you don't take magnesium, Vitamin D won't absorb because it needs magnesium to do so. Magnesium chloride, "magnesium oil " is the best.

Red Algae
Posted by Kerrie (Sydney, Nsw Australia) on 09/19/2012

I have AS, diagnosed nearly 8 years ago. I have tried everything and stumbled upon something that has made a remarkable difference to my pain. I have been taking a supplement with vitamin d3 1000iu per tablet, boran(from borax)1mg, selenium 50mcg, and natural vitamin E 33 mg. I have been taking this supplement two mid morning and one in the afternoon. At the same time I am taking red algea (lithothamnion calcareum) 500mg, twice a day (taken at same time as red algea). Before trying this, talk to your Dr, not everyone is vitamin D difficient. I avoid the sun as I am fair skinned and burn easily.

Reader Feedback
Posted by Robert (Manhattan, Ny) on 08/20/2012
0 out of 5 stars

I found from repeated use, on and off, that higher doses of Vit D3 (1000 to 3000iu) results in a negative mood state... So instead I try to make an effort of getting around 10 to 15 minutes of summer sun daily.

Another lesson to myself to remember that despite all the positive claims and current hype about a supplement or herb, one must listen to their body first.

Reader Feedback
Posted by Bibi (Nashville, Tn) on 07/24/2012

This is to Kristina from Munich, Germany - If your body is deficient in magnesium, it will not properly utilize vitamin D. Blood or urine tests are often inaccurate, as only 1% of magnesium is found there. I was found to be vitamin D deficient, but it wasn't until I started supplementing with magnesium citrate powder (mixed in juice) for a week or so that I could take vitamin D without other side effects. Check out this link (when you get to this page, move down just a little bit to the section titled: Magnesium and Vitamin D):

Reader Feedback
Posted by Bama Lori (Birmingham, Alabama) on 05/17/2012

You must look at your calcium levels; Get these tests or past blood work results: Calcium- Vitamin D and P T H... This is the parathyroid hormone level which controls calcium levels. D is a response of calcium levels!!

Low D is the body's way of protecting itself from heart damage and stroke due to high levels of calcium, it may only be slightly elevated. Taking D will hurt your heart and cause edema when you have eleveated calcium.


PTH (parathyroid hormone) is the control module for calcium, consider it a thermostat for the body, it is a hormone gland behind the thyroid; it is so important you have four redundant glands that all do the same thing, but only one works at a time.

I had the same problem, was found to have high PTH. Causing high calicium and resulting low D. Reg. Docs all tried to make me take D... HUGE MISTAKE, ok... seriously! My D was only 7-11; It is important that you STOP D, you are harming yourself, doctors can be such idiots!

Go to; read all about it. It was a simple fix, high calicium (mine was never that high but 9. 8-10. 8; my D 7-11; my PTH 90-110; I had one benign parathyroid adenoma... They are benign 99 percent of the time; it is not cancer, dont go there in your mind. My sestamibi scans were negative, dont get caught in that... Oh we cant see it so it doesnt exist, these glands are the size of a grain of RICE ok... Trust no one except the Norman Parathyroid center to get it right if you have high Cal, even a little; or borderline, high PTH and low D... Those three tests alone are enough to diagnose the ademoma without even seeing the bugger!

Have the surgery only the M I R P, minimally invasive, ( I had to go to Tampa and see Dr. Norman, as all others told me it was cancer and it ALL HAD to be removed, including my thyroid and part of the trachea... WRONG... With a very invasive surgery and a life dependant on drugs to survive... NOT THE CASE AT ALL: its outpatient, it takes half a day, and its done. Thyroid nodules were benign as well! They were causing me to be hypothyroid!

The disease is called Bones, STones, Moans, and Groans; If you have achy joints, (I never had stones) been told you have osteporsis developing or osteopenia, high BP , high Cholesterol; GI problems;... Then get this sucker removed; Symptoms of chronic malabsorbtion; all; and changing your diet is the only way to stop these diseases from progressing and developing tumors!

Now, for the cause of this I have finally arrived at FRUCTOSE MALABSORTION; and GLUTEN intol; I have gone gluten free and LOW FODMAP (eliminating foods with high fructose amounts, this includes sugar free additivies, wheat, onions, garlic, apples, honey, HFCS; etc.. With my foods,

the adenoma is a symptom of chronic malabsorbiton, (wiki that) you must find your intolerences and avoid those foods, this is the only cure, I say again, the only cure! Avoidance... Just like a bee allergy, you must not get stung by foods you cannot process, endocrine disease is the result!

- The same swelling a bee sting causes externally is what is happening in your gut (small intestine) and the villi become damaged, cannot uptake minerals from foods, vitamins will NEVER cure this, in fact they will make you sicker!

Sincerely, all my best, Lori PS: Remember medications have fillers, binders and colors that can make all symptoms worse, they did for me everytime. Avoid All colors and dyes, check personal care products, for wheat germ oil; sorbitol; mannitol, etc.

Try going low lactose; real butter hard cheeses only, lactose free milk, no yogurts; no soft cheeses at all; go gluten free; avoid all wheat products (go to for symptoms and lists of unsafe ingrediets, like MSG, INULIN, modified food startch, etc; Low fodmap foods , avoid apples, pears, cabbage family, some types of beans, no pasta, no breads. (LOW FODMAP) Seek out Shephard works and Wiki on Fructose Malabsorbtion, up to 30 percent of caucasians have it, especially euro decent!