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WHAT IS THE RELATIONSHIP BETWEEN SUPPLEMENTS AND VACCINES?
by Dara Winters on September 29, 2020
As the world waits with bated breath for confirmation of the successful development of a safe and effective COVID-19 vaccine, you may understandably wonder about the vitamin and nutrient supplements that you might already be taking to support your health.
What have the findings of previous research indicated about the relationship between supplements and vaccines, and the implications for wellness – especially during the current uncertain times?
There can be both positive and negative consequences for health
Vitamin A, otherwise known as retinol, has certainly been associated with a wide range of potential health benefits, from the protection of eyesight against age-related decline, to the promotion of healthy growth and reproduction as well as, of course, better immune health.
However, a debate has long raged about the specific effects of supplements and vaccines, together and apart, with vitamin A often a focus of this. Christine Stabell Benn, for instance, in a thesis for Danish Medical Journal based on 11 papers from 1995 to 2010, observed that “vitamin A and vaccines should be seen not only as specific interventions with specific and independent effects, but as immuno-modulators, which can interact with important consequences for overall mortality.
“Combining interventions can be convenient and lead to synergistic health benefits, but we documented several examples, where it also leads to unexpectedly increased mortality.”
What about the role of zinc?
The trace element zinc is another nutrient that is strongly associated with immune health – its importance only further heightened by the fact the body cannot produce or store it. This means that you must ensure a constant intake through your diet.
The body requires zinc for the activation of T lymphocytes, otherwise known as T cells, which don’t merely control and regulate immune responses, but also attack cancerous or infected cells. It’s fascinating, then, to learn of studies indicating zinc’s potential ability to improve the effectiveness of vaccinations.
Among these was French research involving elderly care home residents, which found that selenium and zinc supplements strengthened their immune systems after they received the influenza vaccine. Significantly fewer respiratory tract infections were suffered by those who benefitted from both the vaccine and supplementation, rather than just the vaccine.
And looking to the other end of the age spectrum, a randomised controlled trial in India found that combined probiotic and zinc supplementation benefited infants who received the oral rotavirus vaccine, Rotarix.
This is complemented by a study published in The Journal of Infectious Diseases in 2003, which discovered that zinc supplementation had the potential to enhance the effectiveness of the oral cholera vaccine in children, due to its improvement of seroconversion to vibriocidal antibody.
The importance of supplements might be even greater in the age of COVID-19
Naturally, at a time of typing when a proven safe COVID-19 vaccine does not exist, the exact relationship between vitamin and nutrient supplements and vaccination against this disease cannot yet be ascertained.
With clinical trials already underway into the use of zinc supplementation both alone and alongside such drugs as chloroquine, we will certainly watch with interest for indications of the nutrient’s potential value in helping to relieve the burden of COVID-19 on global health – with or without a vaccine.
Need more zinc in your life?
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🍋 1500mg of vitamin C (that's 33 lemons)
🍳 30ug / 1200 IU vitamin d3 (that's 14 eggs)
🥬 Over 100mg of plant extracts (that's a lot of antioxidants)
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