Healthy Diet and Good Nutritional Status is Essential for Immune System

We are from the Journal Immunogenetics: Open Access and we will keep updating the news and novels regarding diseases and disorders in respective field. Now we have written a short note that healthy diet and good nutritional status is essential for immune System.

Immunogenetics is the branch of medical genetics that explores the relationship between the immune system and genetics.

Autoimmune diseases, such as type 1 diabetes, are complex genetic traits which result from defects in the immune system. Identification of genes defining the immune defects may identify new target genes for therapeutic approaches. Alternatively, genetic variations can also help to define the immunological pathway leading to disease.

Yes, a healthy diet and good nutritional status is essential for a fully functioning immune system, but that is not the same as saying that nutritional supplements make it work any better.

The “sunshine vitamin”, vitamin D, is a case in point. We know that low levels can affect the immune system and are associated with an increased risk of catching respiratory viruses (and possibly worse symptoms when you do). However, there is no good evidence that taking the vitamin offers any useful protection against COVID-19.

That said, because of UK weather, most people have lower than ideal levels of D at this time of year, and present advice is that most of us should be on supplements from autumn to spring anyway.

So please do follow government guidance — I take 10-20mcg of vitamin D3 daily from September to mid-April — just don’t expect it to render you immune to coronavirus.

As for other supplements, including zinc, and antioxidants such as vitamin C, if you are getting these from your diet then you are unlikely to gain anything from supplements. Indeed, trials of high-dose antioxidants against conditions such as heart attack, stroke and cancer have suggested that such supplements may even be harmful.

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Robert Solomon
Managing Editor | Immunogenetics: Open Access
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