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Benefit of Vitamin D

After 22 years as an RN, I now write about medical issues and new medical advances. Diet, exercise, treatment, and lifestyle are important.

Vitamin D3

Vitamin D3

Vitamin D Facts

Vitamin D is a fat-soluble steroid derivative. It plays a very important part in calcium homeostasis and bone metabolism. People with low vitamin D levels are more susceptible to upper respiratory infections.

Your body produces more vitamin D when your skin is exposed to sunlight. Many people avoid the sun due to their fear of skin cancer. Vitamin D is found naturally in some foods, such as fatty fish, liver, beef, egg yolks and mushrooms. It is added to other foods, such as milk and some cereals.

Over a billion people have vitamin D deficiency worldwide. This is an epidemic that has been ignored.

The deficiency is more common in darker skin people, residents of nursing homes, health care workers and those with limited sun exposure. Obesity is also a factor in vitamin D deficiency.

Other Reasons For Vitamin D Deficiency

You may have vitamin D deficiency if you have inflammatory bowel disease, gastric bypass surgery or trouble absorbing fats can also be a problem with vitamin D.

There are some medications that cause a deficiency, and they include:

  • Weight-loss medications orlistat (Alli, Xenical)
  • Cholesterol reducing medication cholestyramine (LoCholest, Prevalite, Questran)
  • Phenobarbital or phenytoin (Dilantin, Phenytek)
Egg yolks

Egg yolks

Effects of Low Vitamin D Levels

Abnormally low levels of vitamin D are linked to several inflammatory diseases, such as:

  • Rheumatoid arthritis
  • Systemic lupus
  • Arthritis
  • Inflammatory bowel disease
  • Multiple sclerosis

The research at this time does not prove that a higher vitamin D level will stave off these illnesses or even prevent age-related diseases.

Vitamin D deficiency may result in diabetes, hypertension, depression, obesity, fibromyalgia, osteoporosis, chronic fatigue syndrome, bone fractures and neuro-degenerative disease, which includes Alzeimer’s disease. It may also contribute to the development of some cancers.

There is a significant effect on anti-inflammatory cells in the laboratory, and there is evidence that vitamin D may lessen the ongoing pain from inflammation. Clearly, more research is needed.

Cancer and Vitamin D

There are several research studies that show vitamin D deficiency increases the risk of developing cancer and death from cancer. One of the ten hallmarks of cancer is inflammation, which occurs with vitamin D deficiency.

The most common types of cancer associated with this vitamin D deficiency include:

  • Breast
  • Prostate
  • Colon
  • Ovarian

Taking vitamin D has been shown to decrease the risk of developing cancer in numerous studies. It also reduces the incidence of advanced cancer, either metastatic or fatal cancer when your weight is within the normal range. There are seventeen types of cancers, along with heart disease, strokes, autoimmune diseases, birth defects and periodontal disease that may be prevented just by taking vitamin D.

From November 2011 through December, 2017, a randomized study included men aged 50 years or older and women aged 55 years or older who were free of cancer, were in a normal weight range and had no cardiovascular disease at baseline. The incidence of cancer was significantly lower for those taking vitamin D.

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5 Common Symptoms of Vitamin D Deficiency

Vitamin D and COVID

There were 489 patients who had their vitamin D level measured in the year prior to the study and the COVID virus. Treatment with vitamin D was found to reduce their risk of COVID, and it decreased their risk of any viral respiratory tract infections.

We really do not know if vitamin D is associated with the incidence of COVID at this time as it is just too early to evaluate.



Effects Too Much Vitamin D

Taking too much vitamin D upsets the calcium balance in your body. This can affect how blood pressure and heart medications work. It is important to check with your physician if you take medications for your blood pressure or any chronic illnesses.

Supplements: The Health Benefits of Vitamin D

Final Thoughts

All vitamins and minerals are important for our bodies, but vitamin D prevents numerous illnesses. For instance, I don't tolerate milk, and I was told to stay out of the sun due to lupus, so taking a vitamin D supplement is a no brainer for me.

Not smoking, eating healthy, maintaining a healthy weight are all things that make us live a healthier life. Research studies have concluded that people who are not overweight, do not smoke and have health insurance will live a healthier life. Taking vitamin D may help you avoid many diseases. There is some evidence that states vitamin D will help protect you from the COVID virus.


What do you think about vitamin D supplements?

This content is accurate and true to the best of the author’s knowledge and does not substitute for diagnosis, prognosis, treatment, prescription, and/or dietary advice from a licensed health professional. Drugs, supplements, and natural remedies may have dangerous side effects. If pregnant or nursing, consult with a qualified provider on an individual basis. Seek immediate help if you are experiencing a medical emergency.

© 2021 Pamela Oglesby


Pamela Oglesby (author) from Sunny Florida on March 08, 2021:

Hi Ann,

I take the same as you for the same reason. Osteoporosis is a threat as we age, which is especially true for women.

I'm glad you found the article to be informative. I appreciate your comments, as always. Have a wonderful week.

Ann Carr from SW England on March 08, 2021:

I take Vit.D with my calcium tablets, due to my osteoporosis, and I can feel the benefit of both. It's so easy to take one each day.

Thanks for all the details and educational information. All these things are so important to us all and it's not always easy to find the information. Thank you.


Pamela Oglesby (author) from Sunny Florida on March 08, 2021:

Hi Shauna,

I take calcium and D3 also. My doctor told me the same thing. I have read that type O blood helps you to not get the virus, but I don't know if that is true.

I'm glad to know you take the vitamins that will give you a healthier life. I wish I had started taking them at a younger age.

I am glad you found this article to be informative. Of course, I appreciate your comments. I hope you have a wonderful week.

Shauna L Bowling from Central Florida on March 08, 2021:

Pamela, this is such an important article. In addition to other vitamins, I take D3 and calcium every day. My doctor told me to include calcium because it activates the D3 to do its job.

I've heard that D3 users and type O blood types are less susceptible to COVID. I fall into both categories and haven't even had a cold through this pandemic. So, I'll keep doing what I've been doing. So far, so good!

Pamela Oglesby (author) from Sunny Florida on March 08, 2021:

Hi Rosina,

I'm glad you found the article informative. It is good to know you are addressing your needs with the Calcium-D.

I really appreciate your comments and your support, as always. I hope you have a good week.

Pamela Oglesby (author) from Sunny Florida on March 08, 2021:

Hi Flourish,

I have had the same experience as you. I was taking calcium, which had vitamin D and I was also taking vitamin D, then I got to high. If I just take the vitamin I get in a normal range easily.

I hope you get your level to normal.I am glad this information was useful for you. I appreciate your very generous comments. Have a great week!

Pamela Oglesby (author) from Sunny Florida on March 08, 2021:

Hi Vivian,

I grew up in OH, so I remember many cloudy days. I think you would probably do well in the summer. I do not know that for sure. I think if your diet has enough vitamin D you would be okay, but otherwise I think it is so simple to take a small capsule each day.

I am glad you found the article informative. Thank you so much for your comments.

Rosina S Khan on March 07, 2021:

Pamela, this was a great and informative article about vitamin D benefits. I am taking Calcium-D at the moment as I have excessive hair loss and also sitting in the sun for 15 min in the morning, which is good for my hair and bones. I loved this article, which was so helpful.

FlourishAnyway from USA on March 07, 2021:

Terrific information. I’ve had a chronic level of vitamin D deficiency and once had a level that was too high because of trying to correct it. Right now my doctor has me on 50,000 IU to try to get me back to where I need to be. The video was helpful and your review of effects of too much or too little were too. Great research as always.

Vivian Coblentz on March 07, 2021:

I'm not sure if you know the answer to this question--I get outside almost daily, but we have a lot of grey days in Ohio! Can you still get Vitamin D from being outside, even if the sun might be behind a cloud? I always heard Vitamin D helped with respiratory ailments and inflammation, but I didn't realize the big connection to so many cancers! Very informative!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Devika,

I'm glad you know the importance of getting an adequate about of vitamin D. Thank you for reading and commenting.

Have a great week!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Brenda,

It sounds like you might get enough vitamin D, but if your doctor orders routine lab work you would find out for sure. I'm not sure the sun in the winter would give you enough, but the milk sure might. Diet is so important.

I appreciate your comments, Brenda. Have a good week!

Devika Primić from Dubrovnik, Croatia on March 07, 2021:

Hi Pamela99 This is a very important part of our lives. I get as much Vitamin D as I can when sunny days come my way. Information such as this is crucial and shouldn't be ignored. You shared a lot here and I read all of it thank you for sharing and enlightening us about everything we need to know about Vitamin D.

BRENDA ARLEDGE from Washington Court House on March 07, 2021:


Another great article.

I'd like to think that I get enough vitamin D.

I am always outside and I do drink milk, but who knows.

Especially during these winter months when I'm inside a bit more.

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Fran,

I'm glad you are taking vitamin D, as the risks of not taking it are great.

I grew up in a suburb of Cleveland and I am glad to be living in north FL now.

Thank you for reading and commenting, Fran. It is always appreciated. I hope you have a good week!

fran rooks from Toledo, Ohio on March 07, 2021:

Pamela, thank you for the beneficial article on Vitamin D. Since I no longer in sunny in Florida but in the north my doctor after lab tests prescribed Vitamin D so I pretend it's my sunshine pill. Glad you reminded me of the benefits of the Vitamin, especially since I'm 80 now.

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Linda,

I fully agree with you about the vegan diet and taking vitamin D3 and calcium. Where we live is certainly a consideration concerning vitamin D3. You are protecting your bones with those two supplements.

Thanks so much for your comments. Have a great week, Linda!

Linda Lum from Washington State, USA on March 07, 2021:

Great information here, Pamela. I live in an area where there are more overcast days than sunshiny ones and so I take a Vitamin D3 supplement every day along with calcium. I have osteoporosis. I think taking a supplement is especially important for people who follow a vegan diet because the options to getting D3 naturally are very limited for them.

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Clive,

It sounds like vitamin D intake is not a problem for you with you diet. I got to visit Jamaica just once and and I loved it there. I would love to come back some day.

Thanks for reading and commenting. Have a good week, Clive!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Ms Dora,

I think the Caribbean sun is probably great to give you vitamin D. I think it is quite possible the sun with warmer temperatures has held down the number of Covid cases.

I agree that we still have to b careful and taking 1 vitamin D capsule can't hurt.

Thank you so much for your comments. Have a wonderful week!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Peggy,

I'm glad you liked the article. I started taking vitamin D several years ago when my doctor recommended it also.

I appreciate your comments. Have a good week!

Clive Williams from Jamaica on March 07, 2021:

Very Good and Informative Hub. I drink milk, eat liver and fish and in my country Jamaica, I get lots of sunshine.

Dora Weithers from The Caribbean on March 07, 2021:

Thanks for these reminders. Hopefully, the Caribbean sun is making an effective contribution. Some have even voiced the belief that the sun in one reason this region has not been harder hit by COVID. Still, we cannot be too careful about getting our fair share of the vitamin.

Peggy Woods from Houston, Texas on March 07, 2021:

I also pinned this to my health board.

Peggy Woods from Houston, Texas on March 07, 2021:

This article about Vitamin D is a good one, Pamela. I have been taking a Vitamin D capsule for many years now after a doctor recommended it. I will share this information with others. Enjoy the rest of your day!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Bill,

Happy Sunday to you too! I'm glad this article had new information for you.

I appreciate your comments . Have a wonderful week!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Peg,

I was low on some labwork too, which is why I started taking it. I am glad you like the article.

I appreciate your comments. Have a good week!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Eric,

You do live in an area that has sunshine most of the time, so it is just a matter of getting outside.

I take a vitamin D3 capsule as well. If you take too much it messes up the calcium in your body, but that won't happpen with one capsule.I am glad you liked the article.

Thank you for your comments. Have a good week!

Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Chitrangada,

I am glad you liked this article. Eating healthy is very important, and knowing which products have vitamin D is also important.

I appreciate you reading the article ansd for your nice comments. I apppreciate your support, as always.

Have a great week!

Bill Holland from Olympia, WA on March 07, 2021:

Always great information! This is easily ten times more than I knew about Vitamin D before reading this. Thank you my friend, and Happy Sunday to you.

Peg Cole from North Dallas, Texas on March 07, 2021:

This information makes me want to start taking a Vitamin D supplement. When my hubby last had an endocrine visit, his levels were low on that vitamin so we will both need to take it, particularly if it helps to avoid COVID. Thanks for sharing your research.

Eric Dierker from Spring Valley, CA. U.S.A. on March 07, 2021:

Most excellent. I need to get out in the sun more. Walking with short sleeves and shorts. They say early morning with sun and around 50 degrees is optimum I hear.

I definitely take a supplement as I have never heard of D3 toxicity. And often sunshine can mean nature, getting out - And that is a great.

I learned so much here. Thank you.

Chitrangada Sharan from New Delhi, India on March 07, 2021:

A very well written article about the importance of Vitamin D, and how it's deficiency may affect our health adversely.

Eating healthy and nutritious food is important, in order to combine all the necessary components naturally.

You have provided some great information in this article. As always, a very useful article.

Thank you for sharing.

Misbah Sheikh from — This Existence Is Only an Illusion on March 07, 2021:

Very interesting article Pamela

The Sun Is One of the Best Source of Vitamin D

When your skin is exposed to sunlight, it makes vitamin D from cholesterol. The sun's UVB rays hit cholesterol in the skin cells, providing the energy for vitamin D synthesis to occur.

The deficiency of Vitamin D can create big problems

According to researchers

If you're fair skinned, experts say going outside for 10 minutes in the midday sun—in shorts and a tank top with no sunscreen—will give you enough radiation to produce about 10,000 international units of the vitamin.

Thanks for sharing


Pamela Oglesby (author) from Sunny Florida on March 07, 2021:

Hi Manatita,

I found several supplements that are suppose to help you not get the Covid virus, and they included zinc, Vitamin C and D. Of course, the focus of this article is vitamin D as I found so much research that it helps with other diseases as well.

I am happy that you read the article and commented, which I always appreciate. Blessings to you, Manatita.

manatita44 from london on March 07, 2021:

Well written article and yes, it is being mentioned, along with Zinc and Vitamin C more and more in relation to Covid. There are many studies put up by doctors from ITU on U-tube, about the difficiency of this Vitamin in Covid patients and other studies showing how it can be useful pre-Covid-19 illness. Worth a read.

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