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Vitamin D3 (Cholecalciferol) and Vitamin D2 (Ergocalciferol) and Calcitriol


The Vitamin D supplement that I take:

Vitamin D3, Cholecalciferol, Vitamin D2, Ergocalciferol, Calcidiol, Calcitriol.

What are all of these things? They are all referring to the various forms of vitamin D in our body, or in the food we eat. Vitamin D3 is also known as cholecalciferol, this is the form made naturally by the body in response to sunlight. Vitamin D2 is also known as Ergocalciferol and comes from plants. Vitamin D supplements come in the form of either Vitamin D3 or Vitamin D2. Calcitriol, or 1,25-Dihydroxyvitamin D if you prefer, is the active form of vitamin D in our body. When sunlight contains ultraviolet B (UVB) radiation, and when it hits your skin cells, it turns 7-dehydrocholesterol into vitamin D3, meaning cholecalciferol. Vitamin D3 in turn binds to vitamin D-binding protein (VDBP) and is transported to the liver, where it gets converted to calcidiol, aka 25-hydroxyvitamin D.

Calcidiol is the storage form of vitamin D in the body. Calcidiol is later converted to the active form of vitamin D in the body, meaning calcitriol, or 1,25-Dihydroxyvitamin D. This conversion of calcidiol into calcitriol mainly occurs in the kidney. But it also takes place in different tissues and cells of the immune system, such as lymph nodes and alveolar macrophages. And not only in alveolar macrophages, but the alveoli themselves.

Vitamin D3 is only found naturally in a few different food sources, mainly fatty fish, like cod, swordfish, tuna, and salmon. Milk doesn’t naturally contain vitamin D3, but it has been fortified with it for almost 100 years now. But other dairy products made from milk like cheese and ice cream aren’t typically fortified with vitamin D and contain only small amounts. For older adults to meet the RDA of 800 IU, they would have to drink about 4 cups of fortified milk per day. Vitamin D3 mainly comes from sunlight though, not food. But the skin’s production of vitamin D depends on a number of factors, only some of which you have control of.

Depending on the season, where you live, where you travel, the time of day, the clothing you wear, the umbrella that you use, all of these factors determine how much UVB light hits your skin. The sun’s rays are most direct between 10 a.m. and 3 p.m. However, the farther you live from the equator, the less UVB radiation you receive. People who live north of about 37° latitude can’t make any vitamin D from sunlight from November to March, even if they spend all day outside bare naked. Why is this the case? During the winter months, the earth tilts away from the sun, ultimately leading to less sun rays hitting the earth. Having darker skin means less UVB absorption, which means less vitamin D3 production. Also, as we age, our body become less efficient at converting UVB light into vitamin D3. This is why older people, as well as darker skin people, are more prone to have lower vitamin D levels. To make matters worse, many older people have reduced exposure to sunlight for different reasons, and may not be getting enough vitamin D in their diet.

Vitamin D signals the intestines to absorb calcium into the bloodstream.
This happens even if you have enough calcium in your diet. Besides strengthening bones, vitamin D helps reduce fractures in the elderly by preventing muscle deterioration, and reducing the chances of falling.

The official definition of a vitamin deficiency means that specific health problems arise as a direct result of not having enough of a specific nutrient. True vitamin D deficiency in children causes rickets, a bone disease where the legs become bowed. This is rare in the United States. Vitamin D deficiency in adults can lead to osteomalacia and osteoporosis, leading to bone fractures. So what if you don’t have deficiency per se, but you have less-than-ideal levels of a specific vitamin? Well, this can increase your risk of various health issues, even though they are not solely responsible for these problems. This is what we call “Insufficiency.”

Most medical societies consider someone vitamin D insufficiency if their level is between 12 to 20 ng/mL (30 to 50 nmol/L), and Vitamin D deficiency is a level less than 12 ng/mL (30 nmol/L). Most experts consider normal levels being above 20 and less than 50 ng/ml. Most people in the United States have values around 20 ng/ml.

But having too high levels can cause other health issues. In one study, levels above 32 ng/ml resulted in people getting less quality sleep. The risk of vitamin D toxicity typically occurs at levels over 100 ng/mL in adults who are also ingesting substantial amounts of calcium. Vitamin D toxicity, whether it’s from vitamin D3 or vitamin D2, generally occurs after inappropriate use of vitamin D. It’s especially important to avoid excess vitamin D in pregnancy because that can cause calcium levels to rise to the point of causing seizures in the mother and developmental problems in the baby.

Doctor Mike Hansen

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Should you take Vitamin C and Vitamin D for Coronavirus | COVID-19


Should you take Vitamin C and Vitamin D for Coronavirus | COVID-19
#coronavirus #covid19 #covid_19

This is the Vitamin D that I take:

Coronavirus | COVID-19 YouTube Video Playlist:

Does colder temperature make you more prone to getting a cold Or COVID-19?
Most health experts agree that when it’s cold, people spend more time indoors and in close contact with other people, and this likely increases the spread of germs.
Also, experts believe that our immune system may be more active when our body is warmer, as in during the summer months.

Back in 2007, there was this study…

In this one particular study looking at the spread of the influenza virus, they put guinea pigs together in a chamber and carried out different environmental experiments on them. They found that low relative humidities of 20%–35% were most favorable for infection, while the transmission was completely blocked at high humidity of 80%.
They also found that when guinea pigs were kept at 5 °C, transmission occurred with greater frequency than at 20 °C, while at 30 °C, no transmission was detected.
The authors concluded that low relative humidities produced by indoor heating and cold
temperatures favored the spread of the influenza virus.

I also want to add, that cold weather, by itself, can cause a runny nose without necessarily
having a cold, and this allows for the virus so be carried in those secretions, which probably facilitates transmission.
40% of common colds are caused by rhinoviruses. The second most common cause of cold is the coronavirus, the normal one, not this novel coronavirus, aka SARS-CoV-2.
Its been shown that the rhinovirus reproduces more quickly at cooler temperatures means you might catch a cold more quickly if you’re chilly.

And this probably applies to the coronavirus as well.

It’s likely that with the combination of all of these 5 factors, meaning, cooler temp, lower humidity, people staying indoors more often in winter months, cold weather causing runny noses and our immune system is more active when it’s warmer, these combinations of factors likely explain why colds, flu,, and COVID-19 are more likely to cause infections in the winter months.
But there is likely a 6th factor as well. And that is vitamin D. Our bodies don’t normally make vitamin D unless we get sunlight. In the winter months, for most of us in this world, we don’t get enough sunlight to make enough vitamin D. Unless you live in a warm climate, then maybe you are the exception. So if you aren’t getting enough sunlight in the winter months, that means you have to get enough vitamin D in your diet. And if you don’t do that, you will have low vitamin D levels. Vitamin D helps regulate or Calcium levels and is important for bone and muscle health. It also plays a role in regulating our immune system, but its exact role is not known.

Why is this important when it comes to the common cold, flu, and perhaps with this novel the coronavirus that’s causing COVID-19? Well, vitamin D doesn’t affect these viruses themselves. Instead, it affects our immune systems.

So what is my recommendation for taking Vitamin D?
The best thing to do is check with your doctor to see if you might have low vitamin D, and if it is low, you’ll def need to get more vitamin D, especially during the winter months.

Vitamin C is a water-soluble vitamin that is vital to the function of white blood cells that help to fight infections, and overall immune system health. Vitamin C is also important for iron absorption, and being deficient in iron can make you more vulnerable to infections in general.
The normal, recommended daily intake of vitamin C for adults from the diet and/or supplements is 75 to 120 mg. You can get about 80 to 90 mg from a cup of orange juice or sliced orange, or even more from kiwi fruit, or a cup of sweet peppers.

Zinc has become one of the most popular suggestions for reducing symptoms of coronavirus.
Some studies showed that zinc reduces the duration of a cold by half, while others showed no effect. Another study found that the type of zinc taken determined the result—zinc gluconate lozenges that provided 13.3 milligrams (mg) of zinc lessened the duration of colds, but zinc acetate lozenges that provided 5 mg or 11.5 mg of zinc did not.

Note: Please watch the whole video to get the proper details, for the character limitation of the youtube description, I couldn’t provide the whole details, so I suggest you, watch the whole video.

Dr. Mike Hansen, MD
Internal Medicine | Pulmonary Disease | Critical Care Medicine
Website:

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#coronavirus #covid19 #covid_19

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