Dietary Supplements May Reduce COVID-19 Risk in Women
In new research published in the journal BMJ Nutrition, Prevention & Health, researchers investigated whether people who took different dietary supplements, including vitamin D and omega-3 fats, were less likely to test positive for SARS-CoV- 2, the virus that causes COVID-19.
Previous studies have shown that a healthy and balanced diet can promote immunity. And when a diet is incomplete, dietary supplements can fill in some gaps.
Vitamins, minerals, and other dietary supplements have been shown to play an important role in supporting immune function. Previous studies have shown that supplements like vitamin D, zinc, elderberry, and probiotics can help reduce colds and / or the flu.
Given the history of studies of dietary supplements and their effects on viruses, researchers are curious whether any dietary supplement can reduce the risk of COVID-19 infection.
And researchers aren't the only ones curious about supplements. Sales of dietary supplements in the United States were more than 50% higher in March 2020 than the previous year. In the single-week period ending March 8, 2020, elderberry supplement sales increased 255% and zinc supplement sales increased 415%.
Using an app-based community survey of 372,720 UK subscribers, the researchers collected self-reported information on regular use of dietary supplements. Users must take supplements at least three times a week for at least three months during the pandemic.
The app tracked supplement use with a simple "yes" or "no" answer, but did not collect the supplement dosage details.
The app was used to monitor the results of people taking these supplements:
The researchers looked at how these supplements affect COVID-19 risk stratified by age, sex, and body mass index (BMI).
What did the study find?
Of the 372,720 users of the app, 23,521 tested positive for COVID-19. Multivariate logistic regression adjustment was applied for age, sex, BMI and health status at enrollment so that researchers could skillfully investigate the association between supplement use and COVID-19 in this UK cohort.
Among the app's users, about half were taking supplements. The researchers found that after adjusting for age, sex, BMI, and health status:
Those who took probiotics were 14% less likely to test positive for COVID-19 infection.
Those who took omega-3 fats were 12% less likely to test positive.
Those who took multivitamins were 13% less likely to test positive.
Those who took vitamin D were 9% less likely to test positive.
"Our research is an observational study and not a clinical trial, so it is highly speculative and we cannot make strong recommendations based on the data we have," CRISTINA MENNI, PHD
The researchers described these effects as modest but significant. And they saw no difference from COVID-19 in those taking zinc, vitamin C, or garlic.
So does that mean you need to run out and buy some supplements? Not yet.
"Our research is an observational study and not a clinical trial, so it is highly speculative and we cannot make strong recommendations based on the data we have," explains Cristina Menni, PhD, professor at King's College London and one of the researchers. in this studio. "Our results support the need for randomized controlled trials of the identified supplements."
"I think this study is interesting because it is one of the first large studies looking at the relationship between certain supplements and COVID-19 risk," says Lisa Young, PhD, RDN, CDN, nutritionist in private practice, adjunct professor of nutrition at NYU "It could be useful for future studies."
Young still recommends a first dietary approach. "Following a nutritious diet remains the first line of defense in maintaining good health," says Young. "I advise clients to eat nutrients from food."
We hope you enjoy watching this video about prevention of Covid
Source: Doctor Mike Hansen
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