How much does vitamin D protect us from diseases like COVID?

Popping vitamins and sitting in the sun became popular self-care practices during the pandemic. But doctors are still digging into the sunshine supplement's supposed magic.

  Vitamin D supplements may offer no Covid benefits, data suggests

Two studies fail to find evidence to support claims supplements protect against coronavirus.

 A Year In, Here's What We Know About Vitamin D For Preventing COVID

More than a year into the pandemic, many of the studies that can offer high-quality evidence are still in the works, but there's now enough out there to offer clues — as well as fodder for spirited debate — about the question. "If I had money on it, I would bet that it's more likely that vitamin D is helpful than not in COVID, but I don't know for sure," Meltzer said.

 Can Vitamin D Help Fight Covid-19?

Studies under way around the world are examining whether the ‘sunshine vitamin’ can help prevent or treat the new coronavirus. Vitamin D deficiency is associated with many Covid-19 risk factors. It is rife among Black, Hispanic and South Asian people who are also more susceptible to the new coronavirus and suffer worse outcomes than whites.

 More Evidence That Vitamin D Protects Against Severe COVID-19 Disease and Death

New research from Trinity College Dublin and University of Edinburgh has examined the association between vitamin D and COVID-19, and found that ambient ultraviolet B (UVB) radiation (which is key for vitamin D production in the skin) at an individual’s place of residence in the weeks before COVID-19 infection, was strongly protective against severe disease and death.

 There's Only Weak Evidence For Vitamin-D As a COVID-19 Preventative—But Scientists Are Trying to Learn More

How should people think about their vitamin-D intake during the pandemic? For starters, don’t view it as a silver bullet protecting you from COVID-19—there’s simply not enough scientific evidence for that. But if you’re one of the many Americans with insufficient vitamin-D levels, it may be a good idea to increase your intake—if not to protect yourself from the virus directly, then at least to improve your health more broadly

 Vitamin D may not protect against COVID-19, as previously suggested

While previous research early in the pandemic suggested that vitamin D cuts the risk of contracting COVID-19, a new study from McGill University finds there is no genetic evidence that the vitamin works as a protective measure against the coronavirus.

 Vitamin D: The truth about an alleged Covid ‘cover-up’

Many studies have shown an association between vitamin D and Covid outcomes, but the evidence is largely observational - meaning it looks at what happens to people with higher and lower levels of vitamin D without controlling for other factors. This isn't gold standard evidence

Can Vitamin D Help Protect against COVID?

Some studies suggest an impact, particularly for those who are vitamin-deficient. But for now, the jury is out.

Can vitamin D supplements help protect against covid-19?

If newspaper headlines are to be believed, there is a simple way to protect ourselves from the coronavirus: take a daily vitamin D tablet. Some say the benefits are so great that people should take mega-doses. But the scientific evidence doesn’t back up the claims. What should we believe?

COVID and Vitamin D…and some other things too.

Does Vitamin D significantly decrease the risk of getting COVID?: 25% chance this is true. The Biobank and Mendelian randomization studies are strong arguments against this; the latitude, seasonal, and racial differences are only weak evidence in favor.

COVID-19: Scientists raise the vitamin D alarm

A group of researchers and doctors have formed an international alliance aiming to encourage governments to increase recommendations for vitamin D intake to 4,000 IU daily as they believe this would reduce COVID-19 hospitalisations.

Do vitamin D, zinc, and other supplements help prevent COVID-19 or hasten healing?

Based on the science, there is reason to be hopeful that supplements such as vitamin C or D, zinc, or melatonin might help in the fight against COVID-19. While there’s no proof yet that they do, additional research could show a benefit in certain situations, or with a different dose or formulation of the supplement. So it’s worth keeping an open mind.

Does vitamin D combat Covid?

It’s cheap, widely available and might help us fend off the virus. So should we all be dosing up on the sunshine nutrient?

Does vitamin D protect against coronavirus?

Recent headlines have suggested vitamin D deficiency could increase the risk of dying from COVID-19, and in turn, that we should consider taking vitamin D supplements to protect ourselves. Is this all just hype, or could vitamin D really help in the fight against COVID-19?

Effect of a Single High Dose of Vitamin D3 on Hospital Length of Stay in Patients With Moderate to Severe COVID-19

Among hospitalized patients with COVID-19, a single high dose of vitamin D3, compared with placebo, did not significantly reduce hospital length of stay. The findings do not support the use of a high dose of vitamin D3 for treatment of moderate to severe COVID-19.

Exploring the Links Between Coronavirus and Vitamin D

Sales of vitamin D to promote immune health have soared, but studies of vitamin D and Covid-19 have yielded mixed results. “People with lower vitamin D have a higher risk of Covid infection, but it looks like this is explained by other risk factors and not by the vitamin D itself,” she said. “Our findings do not support a link between vitamin D concentration and the risk of Covid-19 infection.”

Paging Dr. Hamblin: Does Vitamin D Help Fight COVID-19?

Evidence is slowly mounting. Some researchers think that’s enough to recommend it.

Which Vitamins Actually Reduce Your Risk Of Getting Covid-19?

There is currently no guidance on the use of micronutrient supplements, such as vitamins D and C and zinc, as a treatment for COVID-19, according to the World Health Organization (WHO).