There are 3 ways ahead if you are nutrient deficient.
1) Local wholesome food
2) Exotic non-local food (non-veg in grassland)
3) Supplements
Only first one is non-destructive, self-sustaining, totally healthy.
In second model, there is a chance of contraindications as it is not your native food. If not short term, surely long term old-age issues.
Third one is mere placebo. You spend money and get no real benefits except few cases like folic acid. You also create digestive track torture due to extra digestion of chemicals!

In a well-nourished child with a properly functioning immune system, viral infections are typically subclinical or exceedingly mild. Malnourishment, in particular vitamin A deficiency, is a primary cause of poor outcomes. One of the most effective ways to ensure that a viral illness runs a mild or benign course is to provide children with adequate stores of vitamin A prior to exposure.

Instead of putting efforts in providing our children, future citizens, proper diet, we either submit lives to FEAR (Vaccines) or EGO (Post-viral-attack medicines).

Learn to set priorities right and save unnecessary hurdles in life.

Infection prone monsoon comes only after we have had enough Vitamin A rich mangoes 🙂

Mother nature is very kind. She always want to see her kids flourishing, achieving life-goals.