Is Vitamin D Deficiency An Epidemic No Its Not
Thomas Carpenter, MD, Yale Medicine pediatric endocrinologist and director of the Yale School of Medicines Center for X-Linked Hypophosphatemia
Based on the United States Dietary Association and National Health and Nutrition Surveys , the bulk of the population is not vitamin D-deficient. The population we tend to see vitamin D deficiency inand its typically in wintertimeare breastfed infants. Breast milk doesn’t have much vitamin D in it. That’s what spurred a recommendation from the American Academy of Pediatrics that every breastfed infant be given vitamin D . But if infants aren’t given multivitamin drops, they need to be given 200 IU a day of vitamin D for the first two months of life and 400 units a day afterwards until theyre drinking formula or milk, which are each fortified with vitamin D.
How Can I Get Vitamin D2
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. Furthermore, why did my doctor prescribe vitamin d2?
Vitamin D2 is used to treat hypoparathyroidism . Vitamin D2 is also used to treat rickets or low levels of phosphate in the blood .
Likewise, what foods are high in vitamin d2?
Food | Vitamin D in Standard Portion a,b | |
---|---|---|
Mackerel, Pacific and jack, cooked | 3 ounces | |
Mushrooms, portabella, Exposed to Ultraviolet Light, grilled | ½ cup | |
Tuna, light, canned in oil, drained | 3 ounces | 5.7 |
Secondly, why do doctors prescribe vitamin d2 instead of d3?
Vitamin D2 is indicated for rickets, hypoparathyroidism, and familial hypophosphatemia. In contrast, vitamin D3 is indicated for dietary supplementation .
Can you buy vitamin d2 over the counter?
Vitamin D2 and D3 50000 IU are available with a prescription. Vitamin D2 and D3 400 5000 IU are available over-the-counter .
Healthy People Wont Reduce Their Fracture Risk By Taking Calcium And Vitamin D Supplements Sarah Leyland
We know that healthy people living in the community wont reduce their fracture risk by taking calcium and vitamin D supplements, Leyland says. However, people who may not be getting enough such as those who are housebound or live in sheltered accommodation can benefit from these supplements.
Still, researchers havent found clear evidence of that, either. One meta-analysis examining the prevention of fractures in community, nursing home and hospital inpatient populations concluded that vitamin D alone is unlikely to prevent fractures in the doses and formulations tested so far in older people. And some evidence suggests that high doses can actually result in an increased number of fractures and falls. One randomised study found that high-dose monthly vitamin D supplements increased the risk of falls among the elderly population by 20-30% compared to those on a lower dose.
D for disease
There is also conflicting research on the relationship between vitamin D and other diseases, even ageing.
One main claim is that vitamin D supplements will boost the immune system. Adrian Martineau, professor of respiratory infection and immunity at The London School of Medicine and Dentistry, Queen Mary University of London, who leads a research group on the effects of vitamin D on health, has found that vitamin D plays a role in improving respiratory infections.
One study found that vitamin D helps decrease the risk of respiratory infections though only slightly
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The Dangers Of Vitamin D Toxicity
One of the primary dangers of Vitamin D2 is that there is a fine line between an effective therapeutic dose and toxicity. In fact, prescription Vitamin D2 carries a warning that the dosage should be adjusted as soon as there is notable improvement in D levels.
The popular prescription Vitamin D2, Drisdol, carries the following warning :
Dosage levels must be individualized and great care exercised to prevent serious toxic effects. IN VITAMIN D RESISTANT RICKETS THE RANGE BETWEEN THERAPEUTIC AND TOXIC DOSES IS NARROW.2
Why risk poisoning when there is a completely safe way to get all the Vitamin D3 you need? Were going to discuss that in a moment, but first I would like to briefly review
How To Improve Your Vitamin D Status

Fortunately, there are many ways you can improve your vitamin D status.
Below are a few ideas:
- Select
- Spend at least half an hour in the sun daily, if possible
If you take vitamin D supplements, make sure not to exceed the safe upper intake level, which is 4,000 IU per day for adults .
According to the US Institute of Medicine, the recommended daily allowance is 400800 IU , but common supplemental doses range from 1,0002,000 IU per day.
For detailed information on the optimal dosage of vitamin D, read this article.
Summary You can increase your vitamin D levels by regularly eating foods rich in vitamin D and spending time in the sun.
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Over The Counter Vs Prescription Strength Vitamin D
OTC vitamin D strengths range from 400 IU to 2000 IU. Dosing of OTC vitamin D supplements varies, depending on a persons dietary intake, underlying conditions, and whether it is used as a dietary supplement or treatment of vitamin D deficiency.
Vitamin D softgels, tablets, and drops are available without a prescription. Liquid vitamin D is usually used for babies and adults with swallowing difficulty. There are no significant differences between vitamin D softgels vs. tablets except that softgels are more comfortable to swallow, and it tends to mask the chalky taste better than the pills.
Vitamin D2 50,000 units requires a prescription, however, vitamin D3 50,000 units does not require one. Although vitamin D3 50,000 units does not require a prescription, it may only be accessible by the pharmacy staff behind the counter.
So Why Are Most Prescription Supplements Vitamin D2
You may be wondering how Vitamin D2 supplements came to be the mainstream protocol in the first place. We need to go back almost 100 years to find the answer.
Back in the early 1920s, scientists discovered that exposing foods to ultraviolet light produced Vitamin D2. Thus the manufacture of this vitamin was born, and the process was sold to what would become Big Pharma. Drug companies then produced and sold this medicinal form of Vitamin D to the public and to doctors.
Less than 10 years later, around 1930, scientists noticed that Vitamin D2 did not seem as effective in the treatment of rickets in children as the Vitamin D in cod liver oil.
Subsequent studies showed mixed results, and not surprisingly, in 1949 the World Health Organization declared that differences between the two forms are minimal. But recent research clearly shows that they could not be more wrong!
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How Should I Take Ergocalciferol
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use only the recommended dose of ergocalciferol.
It may be best to take ergocalciferol after a meal, but you may take Vitamin D2 with or without food.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device .
You will need frequent medical tests.
Your doctor may begin to reduce your ergocalciferol dose as your condition improves. Carefully follow all instructions about adjusting your dose. In some cases, there may be a very small difference in amount between safe and dangerous doses of this medicine.
Your doctor will determine how long to treat you with this medicine.
Ergocalciferol may be only part of a complete program of treatment that also includes dietary changes and taking calcium and vitamin supplements. Follow your doctor’s instructions very closely.
Learn about the foods you should eat to make sure you get enough calcium and vitamin D in your diet. Your ergocalciferol dose may need to be adjusted as you make changes to your diet.
Store at room temperature away from moisture, heat, and light.
Why Would A Doctor Prescribe Vitamin D
Vitamin D prescriptions might be on the rise. One study found that testing for vitamin D deficiencies and subsequent prescriptions of the fat soluble vitamin increased more than sevenfold between 2008 and 2013. Why the huge increase? Researchers believe that it was due to a global increase in awareness of patients who are vitamin D deficient, rather than an actual increase in need.
So why would a doctor prescribe vitamin D supplementation? There are several reasons, but it starts with the vitamins accessibility.
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What Should I Watch For While Using This Medicine
Visit your doctor or health care professional for regular checks on your progress.
Do not take any non-prescription medicines that have vitamin D, phosphorus, magnesium, or calcium including antacids while taking this medicine, unless your doctor or health care professional says you can. The extra supplements can cause side effects.
How Much Vitamin D Should I Take
Before taking a vitamin D supplement, talk to your medical provider about your nutritional concerns. He or she can help you determine if a supplement is right for you and can give you guidelines regarding how much vitamin D you should take each day. Unless a health-care provider gives you other advice, only use vitamin D supplements as directed by the manufacturer.
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How To Take Vitamin D2
Use Vitamin D2 ) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use only the recommended dose of ergocalciferol.
It may be best to take ergocalciferol after a meal, but you may take this medicine with or without food.
Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device .
You will need frequent medical tests.
Your doctor may begin to reduce your ergocalciferol dose as your condition improves. Carefully follow all instructions about adjusting your dose. In some cases, there may be a very small difference in amount between safe and dangerous doses of this medicine.
Your doctor will determine how long to treat you with this medicine.
Ergocalciferol may be only part of a complete program of treatment that also includes dietary changes and taking calcium and vitamin supplements. Follow your doctor’s instructions very closely.
Learn about the foods you should eat to make sure you get enough calcium and vitamin D in your diet. Your ergocalciferol dose may need to be adjusted as you make changes to your diet.
Store at room temperature away from moisture, heat, and light.
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
How Much You Need

The vitamin D recommendation, established by the Food and Nutrition Board of the Institute of Medicine, is 600 IU a day after age 70, it rises to 800 IU daily. Nutrition facts labels are based on daily values for healthy adults who eat 2,000 calories a day, and the daily value, which is only 400 IU a day, is less than what the IOM recommends. So if the label says your supplement has 100 percent of the daily value of vitamin D, it has 400 IU.
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What May Interact With This Medicine
Do not take this medicine with any of the following medications:
- vitamin D
This medicine may also interact with the following medications:
- digoxin
- medicines for cholesterol like colestipol or cholestyramine
- medicines to treat seizures or nerve pain
- mineral oil
- orlistat
- some over-the-counter supplements
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
How Should I Use This Medicine
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your medicine at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children for selected conditions, precautions do apply.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
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Vitamin D2 Coupons And Rebates
Vitamin D2 offers may be in the form of a printable coupon, rebate, savings card, trial offer, or free samples.Some offers may be printed right from a website, others require registration, completing a questionnaire,or obtaining a sample from the doctor’s office.
There are currently no Manufacturer Promotions that we know about for this drug.
Vitamin D2 Vs D: What Is The Difference And Which Is Better
Vitamin D, also called calciferol, is a fat-soluble vitamin produced by your body when your skin is exposed to sunlight. It is available as a dietary supplement and a prescription medication, and it is naturally present in or added to some foods. Vitamin D2 and D3 are the two primary forms of vitamin D. Although they are often used interchangeably, you may ask, what is the difference between vitamin D2 and vitamin D3?
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Is Too Much Vitamin D Bad For You
Excessive doses of vitamin D can be harmful. This is because it can lead to abnormally high levels of calcium in the blood, which can cause:
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Nausea, vomiting, or abdominal pain
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Dehydration or excessive thirst
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Heart arrhythmias
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Kidney failure
If you are wondering whether you should be taking a vitamin D supplement, it always helps to ask your healthcare provider. They can help you determine your personal vitamin D needs.
And remember, if you dont have insurance, you can still get a vitamin D screening and treatment with GoodRx Care.
What Happens If I Overdose
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of vitamin D can cause serious or life-threatening side effects.
Overdose symptoms may include nausea, loss of appetite, thirst, urinating more or less than usual, body aches, stiffness, confusion, or irregular heartbeats.
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What Is Vitamin D And How Do I Get It
Vitamin D is an important ingredient in many different cellular processes in the body. It is well-known for keeping our bones strong, but it also plays a role in other functions, including:
-
Muscle strength
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Calcium and glucose metabolism
There are two natural sources of vitamin D:
1) Food: There are only a small number of foods that naturally contain vitamin D. Some of the best sources include:
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Liver
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Mushrooms
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Egg yolks
It is more common to find foods that are artificially fortified with vitamin D, like cereals and milk.
2) Sunlight: Our body can actually make its own vitamin D! When we are exposed to ultraviolet light from the sun, our skin uses the sunlight to make the vitamin from scratch.
Most people have adequate levels of vitamin D through these two sources. After all, it takes only 5 to 30 minutes of sun exposure a day for your body to make enough of it. But some people choose to take supplements to keep their vitamin D levels at a normal level especially if they have or are at risk for low levels of it.
What Is Vitamin D

Vitamin D is a necessary vitamin for the growth and development of bones. Vitamin D is commonly known as ergocalciferol and cholecalciferol . Vitamin D2 and D3 are broken down to their active form, calcitriol, in the body. Calcitriol works by increasing absorption of calcium and phosphorus in the body. Calcitriol also prevents loss of calcium and phosphorus from kidneys so they are absorbed back in the body to maintain sufficient levels.
What brand names are available for vitamin D-oral?
Ergocalciferol , Cholecalciferol , Cholecalciferol
Is vitamin D-oral available as a generic drug?
GENERIC AVAILABLE: Yes
Do I need a prescription for vitamin D-oral?
Vitamin D2 and D3 50000 IU are available with a prescription. Vitamin D2 and D3 400 5000 IU are available over-the-counter .
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What Is Ergocalciferol Used For
Ergocalciferol, like calcitriol and calcipotriene, is a medication that belongs to a class of medications known as vitamin D analogues and is available as a prescription. Clinically, ergocalciferol is generally used in managing hypoparathyroidism, rickets that does not respond to therapy, and some types of hypophosphatemia. Vitamin D is particularly important in helping the body absorb calcium found in the diet. Ergocalciferol helps phosphorus and calcium aggregate in the bone in addition to increasing absorption and reabsorption of the minerals. Ergocalciferol is not considered as potent as calcitriol.
Can You Buy Vitamin D Supplements Over The Counter
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Similarly, how much over the counter vitamin D can I take?
The over the counter products that contain vitamin D usually do not have more than the recommended daily dose of 400 IU and patients can tolerate that dosage very well. You can purchase calcium without vitamin D, but keep in mind that calcium needs vitamin D in order to be absorbed and used by the bones.
Also Know, do you need a prescription for vitamin D? However, although VitaminD3 50,000 units does not require a prescription, it is still usually purchased from behind the pharmacy counter and may need to be ordered in.
Just so, is over the counter vitamin D as good as prescription?
OTC Vitamin D More Effective Than Prescription Vitamin D According to some studies, vitamin D3, which is produced by the skin, is more powerful, hence more effective at raising blood levels compared with vitamin D2, however, some studies say they are equal.
What is the best over the counter vitamin D supplement?
Calcium-Vitamin D Supplements: Average Total Lead Levels in Samples Tested*
Product | Pill type |
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