Vitamin D Deficiency
What are the symptoms of vitamin D deficiency?
There is no clear pattern of symptoms. In many people remain asymptomatic despite low levels. But here are the more common symptoms
What diseases are associated with Vitamin D deficiency?
Vitamin D deficiency has been shown to play a role in almost every major disease.
VITAMIN Deficiency. D3-2500 contains 2,500 IU of the most important single vitamin to supplement - Vitamin D3. Everyone recognizes the central role Calcium plays in bone health, yet few are aware that without Vitamin D, Calcium cannot be absorbed and utilized. In short, Vitamin D is just as important as Calcium for bone health. That should be enough to encourage everyone to consume extra Vitamin D, but it’s the other benefits that are making headlines and has experts seeking to drastically raise the recommended levels of Vitamin D. The body can produce small amounts of Vitamin D when exposed to sunlight (UV radiation), but our reduced sun exposure, increased use of sunscreens, as well as aging makes our internal production of Vitamin D extremely limited and unreliable. Moreover, Vitamin D is not readily available in food, being present in only small amounts in some fish and eggs. As a result, for over 30 years, we have always provided extra Vitamin D in all our multivitamins and Calcium products. An enormous amount of recent research confirms the wisdom of consuming extra Vitamin D and, best of all, with our Vitamin D3-2500, it is a pleasure to since it comes in a small, soft, capsule that is guaranteed gentle even to sensitive stomachs.
It is estimated that anywhere from 30 to 100% of Americans, their age and community living environments, are deficient in Vitamin D. More than half of all American children are vitamin deficient. Supposedly almost 3/4s of pregnant women are vitamin D deficient, predisposing their unborn children to all sorts of problems. Worldwide, it is estimated that the epidemic of vitamin D deficiency affects one billion people. In my practice over 80% of patients whose vitamin D levels I check are deficient.
No one is exactly sure why this is happening apart from the fact that we spend too much time indoors and when we go out into the sun, we lather sunscreen on ourselves. I think it must be more than that. But whatever the reason, the reality is we have a major epidemic on our hands.
How much vitamin D do I need?
How much vitamin D you need varies with age, body weight, percent of body fat, latitude, skin coloration, of the year, use of sun block, individual variation in sun exposure, and – probably – how ill you are.
As a general rule, old people need more than young people, big people need more little people, fat people need more than skinny people, northern people need more than southern people, dark-skinned people need more than fair skinned people, winter people need more than summer people, lovers need more than haters, sun- need more than sun worshipers, and ill people may need more than people.
What I and many of my colleagues around the country are finding is that even people spending what we thought was of time in the sun, are still showing up with low blood vitamin D levels. I am not sure why at this stage but there is an easy and cheap solution…vitamin D supplementation.
Here are some guidelines:
What about vitamin D toxicity?
It is impossible to generate too much vitamin D in your body from sunlight exposure: your body will self-regulate and only generate what it needs. Although very rare, it is possible to overdose and become toxic with supplementation as vitamin D is a vitamin and therefore stored in the body for longer periods of time. Therefore if you are taking 5,000 IU or more daily, you should have your blood levels monitored approximately every 3 months.
What blood test should I have to check my vitamin D levels?
The only blood test that can diagnose vitamin D deficiency is a 25- D (25 OH vitamin D). Unfortunately, some doctors are still ordering the wrong test, 1,25-dihydroxy-vitamin D. a common cause of high 1,25-dihydroxy-vitamin D is a low 25(OH)D or vitamin D deficiency. So when doctors see the 1,25-dihydroxy-vitamin D is normal or high and tell their patients that they are OK, they are often vitamin D deficient.
Your doctor should do this test for you. Unfortunately even some of the labs, in Qwest, have had problems with correct results, usually giving erroneously high results.
If you don’t want to go your doctor, the ZRT lab does a blood spot test that you can order without going a doctor.
What is the ideal blood level of 25 D?
The current ranges for “normal” are 20 to 55 ng/ml. These are much too low!!! They may be fine if you want to prevent rickets or osteomalacia, but not for optimal health. The ideal range for optimal health is 50-80 ng/ml.
How often should I have a 25 hydroxy vitamin D blood test?
At least once a year especially at the beginning of winter. If you are supplementing, I suggest you monitor your vitamin D levels approximately every 3months until you are in the optimal range. If you are taking high doses (10,000 IU a day) your doctor must also check your calcium, phosphorous, and parathyroid hormone levels every 3 months.
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Many of my colleagues and I believe that the current RDA of vitamin D (200 IU), which was set in 1997, may be too low to accommodate our current lifestyles. No sooner did we all utter those words than a new Institute of Medicine (IOM) report was issued increasing the RDA to 600 IU, and 800 IU for people over 70 years of age. Frankly, many doctors and scientists felt that the recommendation is still too low.
Vitamin D is one of the fat-soluble vitamins (e.g. A, D, E, K). Make sure to eat some fat-containing food (e.g. nuts, low-fat dairy) for optimal absorption. There are two main forms of the vitamin: D2 (ergocalciferol) and D3 (cholecalciferol). Catching ultraviolet B rays will increase your D3 levels. Fatty fish, mushrooms, eggs meat are rich in D, as well as foods specifically fortified with D. Vitamin D is essential for the proper absorption of calcium and phosphate. That’s why vitamin D is so critical for bone health.
What you may not know is that recent research has also shown that adequate vitamin D levels are necessary for optimal immune, brain, nerve, and muscular function and control of genes that can influence our tendency toward certain diseases. Research in these areas is still evolving.
How does someone become vitamin D deficient? Remember the age-old recommendation to get your 15 minutes of daily sunshine? Well, as it turns out, that may not be enough. A study of young Hawaiian skateboarders and surfers found that over 50% of them had vitamin D levels lower than average. Slathering on sunscreen could be an issue in blocking adequate absorption. What was really interesting was that the vitamin D levels of these tropical sun-bathing folks were compared to levels among Wisconsin residents who were taking vitamin D supplements and who aren’t riding waves or boogying down the sidewalk on their boards. Guess who had better levels? Yep, it was the pale-skinned Midwesterners. outdoor training and recreation cutting it for maintaining adequate vitamin D levels.
What should your vitamin D level be? Here’s the rub. The IOM panel recommends 20 ng/mL as a sufficient level, while some vitamin D advocates, including the Endocrine Society and the International Osteoporosis Foundation, note that 30 ng/mL is necessary for optimal bone health. Can you have too much? Evidence suggests that levels above 50 ng/mL may pose an increased cancer risk. But that’s not the problem for most of the population. Not having enough D on board is the critical issue.
The good news is that emerging information about vitamin D’s potential has prompted excellent new research studies. For instance, the National Institutes of Health has initiated a study to include 20,000 men and women over 60 years old to study whether 2,000 IU of vitamin D, omega-3 fatty acids from fish oil, or placebo will lower the risk of heart disease. Stay tuned!
Meanwhile, what should you do?
1. Get your vitamin D level checked. This is especially important for those people who are getting sun, are at risk for osteoporosis, may have inadequate dietary intake, and are either taking no vitamin supplements or are taking them sporadically. It’s just good to get a baseline. Knowledge is power.
2. Discuss your vitamin D status and supplements with your medical team. Because there is controversy surrounding the IOM report regarding what is a normal D level and supplement intake, you need to talk with your medical professional about your individual situation. Your gender, age, level of physical activity, nutrition intake, bone status, osteoporosis risk, and sun exposure are all factors that must be considered. Then add to this your D level and you can have a comprehensive discussion about next steps to optimize your D status.
3. Add up your daily D. Just for grins, whip out your supplements and add up how much D you’re actually consuming. Multivitamins contain D at varying levels, while calcium supplements are usually fortified with D. Check out how much D you’re consuming from foods sources including fortified dairy and cereals. This will help you monitor your total intake. And it will be helpful to share this information with your medical team when you’re deciding how much D you need on a daily basis.
4. Soak up a few rays. Even though we now know that 15 minutes in the sun is probably not enough to bump your D levels sky high, it’s still good to get outdoors to reap whatever benefit you can from the sun, as well as enjoy your external environment while staying physically active. Just remember to smooth on that sunscreen after 15 minutes of exposure or you’ll never hear the end of it from your dermatologist.
5. Eat D- foods. You saw the laundry list of natural food sources for vitamin D. If you eat salmon, try to get the wild (not farmed) type, as it has fewer contaminants. I’m increasing my egg consumption and integrating more mushrooms into my daily salads and side dishes.
Michael Holick, MD colleagues from the Boston University School of Medicine report that eating mushrooms with vitamin D2 can be as effective at increasing vitamin D status as taking vitamin D2 or D3.
The researchers randomized 30 healthy adults to take either 2000 IU capsules of traditionally-made vitamin D2, 2000 IU vitamin D3 or 2000 IU of vitamin D2 made from irradiated mushrooms. The mushrooms were then finely chopped and placed in capsules. The participants supplemented once daily for 12 weeks during winter months.
The authors found that baseline 25(OH)D levels were not significantly different among the different supplementation groups. Vitamin D status among the 3 groups gradually increased for 7 weeks when levels plateaued and remained stable for the remaining 5 weeks.
“These results provide evidence that ingesting mushrooms which have been exposed to ultraviolet light and contain vitamin D2, are a good source of vitamin D that can improve the vitamin D status of healthy adults. we found ingesting mushrooms containing vitamin D2 was as effective in raising and maintaining a healthy adult’s vitamin D status as ingesting a supplement that contained either vitamin D2 or vitamin D3,” said Holick.
The authors also report that they were able to determine how mushrooms make vitamin D2. They explain that the process is fairly similar to what occurs in human skin after sun exposure. They also report that mushrooms have the ability to produce not only vitamin but also vitamin D3 and D4.
Note that despite these findings, the Vitamin D Council still recommends use of vitamin D3 over vitamin D2