Vitamin D people. I'm taking 5000iu per day. My blood was tested, it is sufficient for me. My wife is at 10,000iu per day because 5000iu was not sufficient for her. A simple blood test by your doctor can tell you what your levels are and help guide you to the daily dose you need.
Vitamin D, as noted many times in this thread, slowly builds in your system, if you get sick it is actually too late to take it. It builds up in your cells over weeks. It is cheap to buy and available at most supermarkets and pharmacies. You may want to take it as a daily supplement.
Bolstering previous research, scientists publish 'remarkable' data showing strong link between vitamin deficiency, prevalent in Israel, and death or serious illness among patients
www.timesofisrael.com
Israel scientists say they have gathered the most convincing evidence to date that increased vitamin D levels can help COVID-19 patients reduce the risk of serious illness or death.
Researchers from Bar Ilan University and the Galilee Medical Center say that the vitamin has such a strong impact on disease severity that they can predict how people would fare if infected based on nothing more than their ages and vitamin D levels.
Lacking vitamin D significantly increases danger levels, they concluded in newly peer-reviewed research published Thursday in the journal PLOS One.
The study is based on research conducted during Israel’s first two waves of the virus, before vaccines were widely available, and doctors emphasized that vitamin supplements were not a substitute for vaccines, but rather a way to keep immunity levels from falling.
Vitamin D deficiency is endemic across the Middle East, including in Israel, where nearly four in five people are low on the vitamin, according to one study from 2011. By taking supplements before infection, though, the researchers in the new Israeli study found that patients could avoid the worst effects of the disease.
“We found it remarkable, and striking, to see the difference in the chances of becoming a severe patient when you are lacking in vitamin D compared to when you’re not,” said Dr. Amiel Dror, a Galilee Medical Center physician and Bar Ilan researcher who was part of the team behind the study.
He noted that his study was conducted pre-Omicron, but said that the coronavirus doesn’t change fundamentally enough between variants to negate vitamin D effectiveness.
“What we’re seeing when vitamin D helps people with COVID infections is a result of its effectiveness in bolstering the immune systems to deal with viral pathogens that attack the respiratory system,” he told The Times of Israel. “This is equally relevant for Omicron as it was for previous variants.”
Health authorities in Israel and several other countries have recommended vitamin D supplements in response to the coronavirus pandemic, though data on its effectiveness has been sparse until now.
In June, researchers published preliminary findings showing that 26 percent of coronavirus patients died if they were vitamin D deficient soon before hospitalization, compared to 3% who had normal levels of vitamin D.
They also determined that hospitalized patients who were vitamin D deficient were 14 times more likely, on average, to end up in severe or critical condition than others.
While the scientific community recognized the importance of the results, questions arose as to whether recent health conditions among the patients might have been skewing the results.
The possibility was raised that patients could have been suffering from conditions that both reduce vitamin D levels and increase vulnerability to serious illness from COVID-19, meaning the vitamin deficiency would be a symptom rather than a contributing factor in disease severity.
To zero out that possibility, Dror’s team delved deeper into the data, examining each of its patients’ vitamin D levels over the two-year stretch before coronavirus infection. They found that the strong correlation between sufficient vitamin D levels and ability to fight the coronavirus still held, and the level of increased danger in their preliminary findings remained almost identical.
“We checked a range of timeframes, and found that wherever you look over the two years before infection, the correlation between vitamin D and disease severity is extremely strong,” Dror said.
“Because this study gets such a good picture of patients’ vitamin D levels, by looking at a wide timeframe instead of just the time around hospitalization, it offers much stronger support than anything seen so far emphasizing the importance of boosting vitamin D levels during the pandemic,” . . .