Vitamin D Health Benefits

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:(

Seasonal Affective Disorder
Posted by Steve (Nv) on 10/11/2018

5HTP and the light therapy will be hugely helpful for SAD.

Seasonal Affective Disorder
Posted by Jan (Mi) on 10/12/2018

Bill, thanks for the suggestions. I will enjoy reading the sites that you included in your post. I do have niacinamide. I'll get right on it. The B complex too. Thanks again for taking the time to help me out. It's really appreciated.

Thanks, Charity. That was a very sweet reply and so appropriate. We are having an extremely dark gloomy day today and I've just tried to keep in mind how very fortunate I am. And yes, the holidays can be an anxious time, but as I've gotten older, I've given up a lot of things I used to do and let the kids do them now. I do know, that after three or four dark days, it really can get to me and throw me into anxiety/panic attacks. My mood starts to go downhill in late October and get better every March. Thanks again for reminding me to smell the flowers.

Vitamin B and D Deficiencies Are Connected
Posted by Kate Whitley (AL) on 12/22/2021

Hi Valerie,

Thank you for your very informative post in 2017 about Vitamin D and the Bs. Could you tell me where you got your information? I'm studying and will soon implement Dr. Gominak's RightSleep method of supplementing with Vitamin D and the Bs and your information sounds exactly like hers!

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.


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.

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.

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

Vitamin D Side Effects
Posted by Kristina (Munich, Germany) on 05/08/2012
0 out of 5 stars

Can anyone please help? My vitamin D is too low and my doctor prescribed me 50.000 IU. But even when I take 600 IU's of vitamin D (pure, no fillers) I wake up the next morning with bags under my eyes (fluid bags, edema). When I keep taking the vitamin D the bags get worse by day, and I get very tired.

Now I'm afraid to take the 50.000 IU and wake up with horrible bags. What could be the problem? Bad liver, liver congestion, low potassium, low calcium, low thyroid? Anyone?

Thanks for help!

Vitamin D Side Effects
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!

Vitamin D Side Effects
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):

Vitamin D-3 From Sun
Posted by Steve (Las Vegas, Nevada) on 03/04/2012
5 out of 5 stars

Hopefully it will be ok to post this video:

The video is by a neurologist who really has no interest in health food or vitamins but found that by getting her patients on high levels of D3 many of them had almost miraculous recoveries from fibro, sleep disorders, migraines, sleep apnea and many more issues. Watch all five parts if you can.

Peace, Steve

Musculoskeletal Pain
Posted by Shary (Centennial, Co) on 12/21/2010
5 out of 5 stars

About a year ago, a therapist suggested vitamin D for my chronic, nonspecific musculoskeletal pain. She recommended 4,000 IU of vitamin D3 daily. I got a little better but not much, and didn't associate it with vitamin D supplementation at the time. Then about a month ago I heard about the Vitamin D Council, a non-profit group of physicians and research scientists, and I went on their website.

Knowing from a recent blood test that I am somewhat deficient in vitamin D, and based on what I was reading, I immediately began taking 8,000 IU of D3, and what an improvement! In just a few weeks I am almost completely pain-free in the neck, shoulders, hips and knees. I don't believe it is coincidence because I've been dealing with muscle pain for 6 years now. I will drop back to the Council's recommended dosage in the next few months, at which time I can get some of my vitamin D from the sun.

If there really is a magic bullet, it could very well be vitamin D. It helps just about every aspect of the human body. If you don't spend much time outside, are in the habit of slathering on sunscreen, or if you live north of 35 degrees latitude, you are probably low on D. Please be aware that although this research appears to be solid, and I know for certain it has helped me, it isn't yet mainstream and differs considerably from government recommendations. It is important to have your vitamin D level checked so you have some idea of how much you need. It's also important to know that vitamin D supplements must be D3, which is cholecalciferol, the same thing our bodies make from sunshine.

Vitamin D3 Side Effects
Posted by Merryanne (Orange City, Florida, Usa) on 04/16/2010 120 posts

Hello Briona, I am sorry to hear of your problem,,,I am taking 5,000-6,000 unit of D3 my self for about 6 weeks, and now for the last week I have been having some unusual sideeffects, at least they are unusal for me at 63 years old,,I have been more sexually aroused than when I was 40 years old, It causes me to have problems going to sleep and I do not dare go out for a drink I am afraid I will forget I am a christian lady,,,I feel like a she cat in heat,,,so I have stopped taking for two days and see if that helps,,,but other wise I feel good, more energy,, less appetite, I have lost 6 pounds and enjoy my house work and am in a happy mood, have stoped taking depression medication,,, now if I can get a hold of my sex drive and feel like I will not molest the men around me I will be ok...Merryanne in Central FL

EC: Merryanne, what brand of D3 are you taking? Also, what is the D3 made from... can you please list all ingredients (including fillers) on your bottle? Thanks so much!

Vitamin D3 and Calcium
Posted by Bill (San Fernando, Luzon, Philippines) on 04/16/2010

Hi Joe...The kidneys are used to balance the electrolytes -- or minerals -- within the body. So although taking sodium and potassium bicarbonate with lemon is one of the best remedies for acidosis and will balance many body parameters, this will completely depend on the ability of the kidney to do its job properly. Therefore, I would not attempt this remedy if your father has problems with his kidneys without medical advice from a doctor.

Having said that, there is some recent research that suggests that taking just Baking Soda (Sodium Bicarbonate) with water can be beneficial to people with kidney disease. See these links:

Recent Research

Dr Mark Sircus -- Kidney Disease

Vitamin D Testing at Home
Posted by Lori (Dayton, Oh) on 06/09/2010

I have used the ZRT tests for vitamin D, although I guess the price has gone up. It's a simple blood test - easy to administer. A few drops of blood and send it off. It took about 2 weeks for the results. I still have 2 unused tests. I take a daily supplement of D3 (and a high quality cod liver oil for vitamin A with NO problems maintaining a desirable level of D3 - I think it's a ratio issue)but I'll be vacationing at the beach this summer. I know my levels with supplementation; now I'm interested to see how they change with sun exposure exclusively.

One more thing, a discussion about vitamin D3 and calcium is not complete without discussion of vitamin K2 which dictates calcium deposition.

Protects Against Cancer
Posted by Stacie (Whitehous Station, Nj) on 02/28/2010
5 out of 5 stars

Vitamin D3 protects against cancer. Do the research for yourself. Everyone in my family takes 1 D3-5 capsule, 5,000 IU per day unless we are going to be in the sun.

Dr. Cannell's Vitamin D Newsletter
Posted by Earth Clinic (USA) on 02/27/2010

Latest newsletter from the Dr. Cannell and the Vitamin D Council. Please pay particular attention to the paragraph about the harmful effects of Vitamin A and why people should avoid cod liver oil like the plague!

..."However, hidden on page eight is one sentence and a small table, which shows that the benefits of vitamin D are almost entirely negated in those with the highest vitamin A intake."


The Vitamin D Newsletter

Remarkable Paper in British Medical Journal

February 28, 2010

This is a periodic newsletter from the Vitamin D Council, a non-profit trying to end the epidemic of vitamin D deficiency. If you want to unsubscribe, go to the end of this newsletter. If you are not subscribed, you can do so on the Vitamin D Council's website.

This newsletter may be reproduced as long as you properly and prominently attribute its source. Please reproduce it, post it on Internet sites, and forward it to your friends.

A few weeks ago, the British Medical Journal published a remarkable paper, remarkable that it studied more than 500,000 subjects, remarkable that it had 56 (fifty-six) authors, remarkable that it confirmed low vitamin D levels obtained in the past are a risk factor for developing colon cancer in the future. However, the most remarkable part of the paper is that the 46 scientists minimized the true significance of their own research. They found that vitamin A, even in relatively low amounts, appears to thwart vitamin D's association with reduced rates of colon cancer.

Jenab M et al. Association between pre-diagnostic circulating vitamin D concentration and risk of colorectal cancer in European populations: a nested case-control study. BMJ 2010;340:b5500

This is a prospective nested case-controlled study, which means it uses subject's vitamin D blood samples obtained and frozen in the past and then reviews their medical records into the future to see who gets colon cancer, comparing the study subjects to similar members of the group that did not get the illness. Dr. Mazda Jenab and his 45 colleagues from the International Agency for Research on Cancer confirmed that low vitamin D levels are a risk for colon cancer in a dose response manner; those with the highest levels were about twice as less likely to develop colon cancer compared to those with the highest levels.

However, hidden on page eight is one sentence and a small table, which shows that the benefits of vitamin D are almost entirely negated in those with the highest vitamin A intake. And the retinol intake did not have to be that high in these older adults to begin to negate vitamin D's effects, about 3,000 IU/day. Remember, young autistic children often take 3,500 IU of retinol a day in their powdered multivitamins, which doesn't count any additional vitamin A given in high single doses.

This is the largest study to date showing vitamin A blocks vitamin D's effect and explains some of the anomalies in other papers on vitamin D and cancer. For example, Dr. Rachael Stolzenberg-Solomon of the NIH conducted two similar studies on pancreatic cancer, with startling different results. Her first paper showed high vitamin D levels tripled the subsequent risk of pancreatic cancer, her second paper showed no effect. The difference, the first was conducted in a cod liver oil country, Finland, the second in the USA.

Stolzenberg-Solomon RZ et al. A prospective nested case-control study of vitamin D status and pancreatic cancer risk in male smokers. Cancer Res. 2006 Oct 15;66(20):10213-9.

Stolzenberg-Solomon RZ, et al. Serum vitamin D and risk of pancreatic cancer in the prostate, lung, colorectal, and ovarian screening trial. Cancer Res. 2009 Feb 15;69(4):1439-47.

Prostate cancer is another good example; ten similar studies have been conducted on vitamin D blood levels and the risk of subsequent prostate cancer. Dr. Lu Yin of the German Cancer Research Center reviewed them in detail. Eight of the studies found no relationship but two studies found a U shaped curve, that is, an increased risk of prostate cancer at both lower and higher vitamin D levels. You guessed it; both of these studies were from Nordic countries where cod liver oil consumption is rampant.

Yin L et al. Meta-analysis of longitudinal studies: Serum vitamin D and prostate cancer risk. Cancer Epidemiol. 2009 Dec;33(6):435-45.

So why is there no relationship between vitamin D levels and the future risk of prostate cancer? All the subjects had their vitamin D levels checked in the late 1980s or 1990s, well into the sun-scare but before the vitamin D revolution. So how did these older people get high levels of vitamin D back then? Multivitamins? No, they only contained a meaningless 400 IU. Vitamin D supplements? No, they were not widely available back then and only contained a meaningless 200 to 400 IU of vitamin D if available. Sunshine? Maybe, but I doubt it. Studies have shown that the elderly were the first to abide by sun-avoidance advice; anyway, the elderly lose the ability to make vitamin D from sunshine; it takes the elderly up to ten times more time in the sun that the young to make an equivalent amount of vitamin D.

However, the elderly of many countries, not just Nordic countries, were raised on cod liver oil and I suspect that a sizable number of Americans continue to take cod liver oil as they age. While cod liver oil from the 1980s and 90s had higher amounts of vitamin D than does modern cod liver oil, it still had toxic amounts of A. I suspect if authors of the above ten studies had controlled for cod liver oil intake, they would have found that high retinol intake was blocking the cancer-preventing effects of vitamin D.

I say this because one author has controlled for retinol intake and the pre-cancerous condition, colon adenomas. Dr. Kyungwon Oh, of the Korea Centers for Disease Control and Prevention, working with Harvard epidemiologists, found that high retinol intake completely thwarted the beneficial effects of vitamin D, stating, "a higher retinol intake, approximately > 4,800 IU/day, appears to counter the beneficial effect of vitamin D . . ." In other words, exactly what the British Medical Journal paper found with colon cancer.

Oh K et al. Calcium and vitamin D intakes in relation to risk of distal colorectal adenoma in women. Am J Epidemiol. 2007 May 15;165(10):1178-86.

Let"s look at Dr. Pamela Goodwin"s study from the University of Toronto that studied breast cancer survival. This a very different study as it looked at vitamin D levels obtained after the diagnosis of breast cancer and subsequent survival in 535 Toronto women between 1989 and 1996. Vitamin D levels ranged from 3 ng/ml to 70 ng/ml. The women with the lowest levels were about twice as likely to die and to suffer distant cancer recurrence compared those with the highest levels. Ten year survival was 85% for those in the upper one-third of vitamin D levels compared to 74% in the lower one-third. However, the data suggested a U shaped curve for the women with levels above 40 ng/ml, that is, a higher risk of dying, but it was not statistically significant.

Goodwin PJ et al. Prognostic effects of 25-hydroxyvitamin D levels in early breast cancer. J Clin Oncol. 2009 Aug 10;27(23):3757-63.

Again, let"s ask where women would get levels above 40 ng/ml in Toronto between 1989 and 1996? Sunshine? We know the answer is no as the authors found no seasonal variation in 25(OH)D levels in the 535 women, even in the women with the highest levels. So where did blood levels of 40-70 ng/ml come from in the early 1990s? Vitamin D supplements were not widely available in the early 1990s, and only contained meaningless doses when available. As sunshine was ruled out, they could only have gotten it from cod liver oil. I have emailed Dr. Pamela Goodwin, lead author, asking how hard it would be to see if cod liver oil use was asked about in the dietary questionnaire and if she could control for cod liver oil intake. She did find retinol intake was associated with higher vitamin D levels but I am particularly interested in cod liver oil intake in women with vitamin D levels above 40 ng/ml.

It's not just in breast cancer that vitamin D levels appear to have a treatment effect; it's in lung, prostate and colon cancer as well. Again, these are studies of people diagnosed with cancer to see if high vitamin D levels at the time of diagnosis are associated with improved survival.; that is, do high vitamin D levels have a treatment effect? On average, those with the highest vitamin D levels at time of diagnosis lived 2 or 3 times longer. One has to ask how high vitamin D levels are associated with greatly improved survival once you get cancer but a higher risk of getting cancer in the first place. That requires some gymnastic thinking and acrobatic basic science.

Zhou W et al. Circulating 25-hydroxyvitamin D levels predict survival in early-stage non-small-cell lung cancer patients. J Clin Oncol. 2007 Feb 10;25(5):479-85.

Ng K et al. Clin Oncol. 2008 Jun 20;26(18):2984-91. Circulating 25-hydroxyvitamin D levels and survival in patients with colorectal cancer. J Clin Oncol. 2008 Jun 20;26(18):2984-91.

Tretli S et al. Association between serum 25(OH)D and death from prostate cancer. Br J Cancer. 2009 Feb 10;100(3):450-4.

Remember, studies of vitamin D levels and subsequent risk of cancer are only one type of epidemiological study. Studies of latitude and cancer are quite clear, the less sunshine the higher the cancer risk. Studies of dietary vitamin D intake and cancer are also mostly supportive but such studies are limited by the tiny doses people get in their diets.

So it is not just autistic children that are being harmed by vitamin A. Avoid cod liver oil like the poison it is and check your multivitamins. Life Extension Foundation just reformulated their multivitamin to contain only 500 IU of preformed retinol. And, I am happy to report that Purity Products, which markets my vitamin D, has no preformed retinol at all in any of their multivitamins, only beta carotene. Purity has also stopped selling cod liver oil. Now, if only Carlson, Solgar, Nature's Way, and other companies would stop selling cod liver oil and stop selling their concentrated vitamin A supplements to a country whose problem is widespread sub-clinical vitamin A toxicity, I'd be a happier agitator.
John Cannell, MD
Executive Director
Vitamin D Council

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Posted by Selena (Chula, Ga, Usa) on 02/16/2010
5 out of 5 stars

I read the information on your site about fibromyalgia and flouride poisoning but I didn't find any on the link between Vit. D deficiency and fibro. I just want to be sure that those suffering from this illness are aware of the belief that fibro. is considered by some to be an adult form of rickets. It manifests itself with signs of so many symptoms because if the body is deficient in Vit. D then it will become deficient in all of the minerals the body needs because without the vit. D in the colon minerals cannot be utilized and absorbed by the body. There is no substitute for the natural vit. D produced by the body by being exposed to natural sunlight....especially women are deficient because all of their makeup and body lotions block the UV rays of the sun. If you are suffering from fibromyalgia, please research the link between fibro. and vit. D deficiency.

Cod Liver Oil
Posted by Mohi (Kuwait) on 06/28/2009
5 out of 5 stars

Vitamin A is an essential nutrient for healthy skin and mucous membranes, for differentiation of cells particularly for the developing embryo, it helps maintain the immune system and is essential for the function of the eyes (the visual process). Vitamin A is called retinol and we can make it from the beta-carotene (and a few other carotenoids) found in highly coloured fruits and vegetables. However, fruit and vegetable consumption in many countries is very low and, therefore, the intake of beta-carotene is low, too. Retinol occurs naturally in liver and liver products, dairy products, some fish and in cod liver oil. Cod liver oil is one of nature's richer sources of retinol as well as vitamin D. We are unable to comment on the amounts of A and D in cod liver oils marketed in the United States which is where the authors of the paper reside.

What happened to cod liver oil in the USA or how it is marketed may be different from the practice in other countries. In the UK cod liver oil the oil has for many decades contained A and D in an approximate ratio of 10:1 based on the amounts in International Units (I.U.). There is a British pharmacopoeial standard for the oil which has specified for many years no less than 600 I.U A and no less than 85 I.U. D per gram. The European Pharmacopoeia specifies, per gram of oil, no less than 600 I.U. and no more than 2500 I.U. of A and no less than 60 I.U. but no more than 250 I.U. vitamin D. Both reflect the ratio of A:D in natural cod liver oil of around 10:1('as nature designed it').

Vitamin D is essential for the absorption of calcium from food and, consequently, it is required for development and maintenance of healthy, strong bones and teeth. Recent research is suggesting that the vitamin may have more and important actions. Very few natural foods contain vitamin D and most of the body's vitamin D comes from the action of sunlight on the skin. The vitamin is fat-soluble (as is A) and it can, therefore, be stored. This is important because the excess made beyond our immediate requirement could be stored for use at a later date. However, the fact that we rely on sunlight has a downside in that the sunlight needs to be of useful strength in order for us to make vitamin D. At higher latitudes, the time and the amount of useful sunlight are short and low, respectively, during late autumn, winter and early spring. This means that body vitamin D status may be compromised and it is the authors' personal view that this is a public health problem that should be addressed urgently.

We also feel and agree that vitamin D nutrition and, therefore, status should be improved. However, we cannot comment on the view of the authors on how they see that this should be achieved. It is possible that A may interfere with D at the level of the cell but this needs to be investigated meticulously before conclusions can be drawn and recommendations can be made by Government departments or agencies. Retinol has been around in nature for a very, very long time and cod liver oil was given to many people in several countries as the first supplement of vitamins D and A. In the UK, in the early days of the second World War, cod liver oil was given away in clinics to pregnant women, nursing mothers and children under the age of five years because of food restrictions and the fact that many women would need to work in factories and other places and would, therefore, be less exposed to sunlight. This continued until the late 1950s/early 1960s.

Cod liver oil has been taken for decades by many generations of people and without apparent adverse effects. Before suggesting that cod liver oil is anything but beneficial, more quality research needs to be done to find out what any interaction between these vitamins means. Only with sound scientific evidence on the actual interaction and the levels of each vitamin that may cause this interaction can authorities make (dietary) recommendations with reference to the intakes of these vitamins and to any maximum level of A (and D) in supplements and foods.

Cod Liver Oil
Posted by Maggie (Redondo Beach, Ca) on 03/03/2010

It sounds like a vitamin overdose, but I am not sure your friend is experiencing vitamin D toxicity. I also supplement with vitamin d3 (5,000 iu/day) and get at least half an hour of sun almost every day (South Bay, California - lots of sunshine). She should stop every supplement for at least 2 weeks and make sure to drink a lot of water to flush liver and kidneys. Add the supplements back in one by one. Let us know how she is in a few days.

Posted by Pam (Santa Fe, New Mexico) on 05/16/2009
5 out of 5 stars

Rosacea and Vitamin D

Have had mild rosacea for a year with broken capillaries on checks. Condition worsened considerably this past winter with pustules within red swellings appearing on face and neck in new places almost daily. I wondered why my skin was calm, with no redness, when I got up in the morning. I read a blog about Vit. D helping rosacea. Hmmm, I took my 1000 IU of Vit. D at night; perhaps that was why my skin was calm in the a.m., I reasoned. I started taking 1000 IU Vit. D when I got up in the morning as well as before bed. I noticed significant positive results immediately. My skin is almost entirely cleared up in one week, even the broken capillaries and redness in the cheeks has subsided. But the best thing is that the oozing pores and pustules have almost completely ceased. I still have maybe one pustule appearing per day, but it's isolated, and not like before where a 1/4" round area of my skin became very red with numerous oozing pores and one pustule within that area that took several days to calm down. I can't believe how easy this was. I'd read that rosacea is worsened by sunlight, so during this past winter I wouldn't go outside without sunscreen and a hat. My rosacea got much worse during this time period. I think I just got low in Vit. D. I'm 58 so that lower ability to absorb Vit. D may be part of it, too.

Cough, Psoriasis
Posted by Tess (Palm Beach, FL) on 02/12/2009
4 out of 5 stars

I came down with the flu last week and a friend mentioned taking Vitamin D three days in a row and also putting hydrogen peroxide in the ear. I went a few days later when I was feeling better to Whole Foods and the only kind I could find was Vitamin D3. Most of the brands were made from liver sources, which I thought might be high in mercury, so I settled for vitamin D3 from Lanolin - also cholecalciferol. Anyway, I have been taking 1-2 softgels (2500 IU) a day with food. Immediately the raspy cough that I can't quite kick disappears. The amazing thing is that my psoriasis around my nose disappeared after taking the first dose. But both the cough and the psoriasis came back when I stopped a few days later. My thought is that I am not taking enough D3.

Question to those who know about Vitamin D3 -- How much is a good daily dosage? If it takes 30 minutes to get 10,000 IU from sitting out in the sun, I imagine you can take at least that amount. I am seeing that some people take up to 50,000 IU a day, but that seems a little high to me!

Leg Pain
Posted by Karen (Atlanta, USA) on 08/19/2007
5 out of 5 stars

I was having pains in my legs to the point I couldn't sleep at night. I couldn't walk thru a mall without getting a kink in my knees. My doctor put me on 50,000 units of vitamin D a week. The pain is gone. The pain returns if I am late by a few days of taking the vitamin D. I have a prescription for 50,000 iu's levels of Vitamin D have been linked with several types of cancer.Many in the helath field consider VITAMIN D is more of a hormone rather than a vitamin. It is very difficult to get enough sun for vitamin D. In fact, in the winter it is almost impossible to get enough sun for vitamin D if you live north of Atlanta, georgia.

Vitamin D Deficiencies
Posted by Lisa (Michigan) on 01/11/2007
5 out of 5 stars

What does cod liver oil have to do with cholesterol? When you get exposure to sunshine (which excludes most people in N. America) on a daily basis, your body uses cholesterol to make vitamin D. This is one reason you body makes an excess. Of course, if you do not get any sun exposure, you don't use up the extra cholesterol, nor do you produce much vitamin D. Most of the diseases that they warn you about resulting from high cholesterol, are really vitamin D deficiencies. Try having your vitamin D levels checked. You may be surprised. Also, low HDL is worse than "high" cholesterol levels, as evident in many heart conditions. A current study shows that the one thing people who live very long lives (over 100 yrs.) had in common was very high HDL levels. If you can't get any sun exposure, at least you can take cod liver oil (some brands taste OK) but you will still have high cholesterol levels. Niacin will raise your HDL level. FYI. Details: (On the importance of vitamin d levels)

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 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

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