Posted on 03/19/2021 11:18:09 AM PDT by Red Badger
Food rich in vitamin D.
In a retrospective study of individuals tested for COVID-19, vitamin D levels above those traditionally considered sufficient were associated with a lower risk of COVID-19.
A new research study at the University of Chicago Medicine has found that when it comes to COVID-19, having vitamin D levels above those traditionally considered sufficient may lower the risk of infection, especially for Black people.
The study, published today (March 19, 2021) in JAMA Open Network, retrospectively examined the relationship between vitamin D levels and likelihood of testing positive for COVID-19. While levels of 30 ng/ml or more are usually considered “sufficient,” the authors found that Black individuals who had levels of 30 to 40 ng/ml had a 2.64 times higher risk of testing positive for COVID-19 than people with levels of 40 ng/ml or greater. Statistically significant associations of vitamin D levels with COVID-19 risk were not found in white people. The study looked at data from over 3,000 patients at UChicago Medicine who had had their vitamin D levels tested within 14 days before a COVID-19 test.
The research team is now recruiting participants for two separate clinical trials testing the efficacy of vitamin D supplements for preventing COVID-19.
This research is an expansion of an earlier study showing that a vitamin D deficiency (less than 20 ng/ml) may raise the risk of testing positive for COVID-19. In the current study, those results were further supported, finding that individuals with a vitamin D deficiency had a 7.2% chance of testing positive for the virus. A separate study recently found that over 80% of patients diagnosed with COVID-19 were vitamin D deficient.
“These new results tell us that having vitamin D levels above those normally considered sufficient is associated with decreased risk of testing positive for COVID-19, at least in Black individuals,” said David Meltzer, MD, PhD, Chief of Hospital Medicine at UChicago Medicine and lead author of the study. “This supports arguments for designing clinical trials that can test whether or not vitamin D may be a viable intervention to lower the risk of the disease, especially in persons of color.”
Meltzer was inspired to investigate this topic after seeing an article in early 2020 that found people with vitamin D deficiency who had randomly been assigned to receive vitamin D supplementation had much lower rates of viral respiratory infections compared to those who did not receive supplementation. He decided to examine data being collected at UChicago Medicine on COVID-19 to determine the role that vitamin D levels might be playing.
“There’s a lot of literature on vitamin D. Most of it has been focused on bone health, which is where the current standards for sufficient vitamin D levels come from,” Meltzer explained. “But there’s also some evidence that vitamin D might improve immune function and decrease inflammation. So far, the data has been relatively inconclusive. Based on these results, we think that earlier studies may have given doses that were too low to have much of an effect on the immune system, even if they were sufficient for bone health. It may be that different levels of vitamin D are adequate for different functions.”
Vitamin D can be obtained through diet or supplements, or produced by the body in response to exposure of the skin to sunlight. Meltzer noted that most individuals, especially people with darker skin, have lower levels of vitamin D; roughly half of the world’s population has levels below 30ng/ml. “Lifeguards, surfers, those are the kinds of folks who tend to have more than sufficient vitamin D levels,” he said. “Most folks living in Chicago in the winter are going to have levels that are well below that.”
While vitamin D supplements are relatively safe to take, excessive consumption of vitamin D supplements is associated with hypercalcemia, a condition in which calcium builds up in the blood stream and causes nausea, vomiting, weakness, and frequent urination. If left unchecked, it can further lead to bone pain and kidney stones.
“Currently, the adult recommended dietary allowance for vitamin D is 600 to 800 international units (IUs) per day,” said Meltzer. “The National Academy of Medicine has said that taking up to 4,000 IUs per day is safe for the vast majority of people, and risk of hypercalcemia increases at levels over 10,000 IUs per day.”
One of the challenges of this study is that it is currently difficult to determine exactly how vitamin D may be supporting immune function. “This is an observational study,” said Meltzer. “We can see that there’s an association between vitamin D levels and likelihood of a COVID-19 diagnosis, but we don’t know exactly why that is, or whether these results are due to the vitamin D directly or other related biological factors.”
Prompted by the evidence that people with vitamin D deficiency are more likely to test positive for COVID-19 and experience significant symptoms, a team at the University of Chicago and Rush University is conducting two studies to learn whether taking a daily vitamin D supplement can help prevent COVID-19 or decrease the severity of its symptoms.
Individuals who would like to learn more about the study and determine their eligibility can visit https://chess.uchicago.edu/vitamind/
Reference: “Association of Vitamin D Levels, Race/Ethnicity, and Clinical Characteristics with COVID-19 Test Results” by Thomas J. Best, Hui Zhang, Tamara Vokes, Vineet M. Arora and Julian Solway, 19 March 2021, JAMA Network Open. DOI: 10.1001/jamanetworkopen/2021.4117
Zinc has been hard to find and I finally got some yesterday at the store. Do you take it once a day or twice?
I’ve been taking all of the supplements recommended for
Covid every morning for the last 40 years. Got a bad cold once about 7 years ago. That’s it.
Best form of D3 is Carlson’s Norwegian Cod Liver Oil, which I buy in lemon flavor. Have a teaspoonful every morning. It does matter where the fish come from.
Though in the “high-risk” group age wise, I’m the healthiest (and oldest) person I know. My terrific doctor understands this and is NOT pushing for me to get vax.
:)
👍🏻👍🏻
That’s why they recently tried to poo poo Vit D as a preventative helper/immune booster, for China virus. 🙄
I take it once a day with the K2+D3. I have no problem finding zinc at Walmart, just be sure you don’t buy the high dose - the highest I’d take is 15mg but I look for the 11mg; I get the K2+D3 through Amazon.
Are you still cranking out antibodies?
Friends of ours, who had it a year ago (w/same symptoms as you) are, still.
Interesting. What were your symptoms for the mild case?
Cancel CCP Virus. It’s racist.
I take 2 ‘baby aspirin’ each morning...................
hold up...if it’s all one race, the HUUUMAN race, why would n’t da COVID treat us all the same?? Just curious, of course.
Fresh Air, Sunshine and a Healthy Diet are good for you, keep you healthy and keep bugs/germs/viruses at bay?
Wow, ya learn something new every day,
s/
We are all born equal.
And then it goes downhill from there..............
Anyone see the story the other day where some official claim was made that Vitamin D did not help. I don’t remember where the report came from, but it was obviously as bogus as Fauci.
.... Interesting thing is that I got my first vaccine (Pfizer) the same day I came down with symptoms ....
🤔
Glad you are feeling better, now.
I think that a SIL was told that she could wait up to 42 days or 6 weeks for her second shot. There is a shortage where they live.
Salad everyday...lettuce tomatoes w/ chick peas cheese chunks black beans & hard boiled eggs.
Chicken soup, pea soup, bean soup, tomato soup....
Dr. Fauci said he takes it to pump up his immune system.
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