What is the solution for vitamin deficiency disease​

Increasing your intake of foods rich in the appropriate vitamins and minerals can help resolve or greatly reduce your symptom

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simple short-term solution for vitamin D deficiency treatment; however, it seems that at a population level, food fortification, using staple foods, is the best method to increase vitamin D consumption and long-term treatment of vitamin D deficiency.

Explanation:

just put it in your own words :)  can i get brain list please?