8 Vitamins and Minerals You Need for a Improve Immune System

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3. Vitamin A

Vitamin A is an infection-fighter and comes in two forms: preformed such as in animal foods such as fish, meat and dairy or from plant carotenoids. Tuna is a great source of preformed vitamin A. When it comes to carotenoids, go colorful:

  • Carrots.
  • Sweet potatoes.
  • Pumpkin.
  • Butternut squash.
  • Cantaloupe.
  • Dark green leafy vegetables.

4. Vitamin D

Known as the sunshine vitamin, it’s one of the most important and powerful nutrients for supporting the immune system. Food sources are limited but include:

  • Salmon.
  • Mackerel.
  • Tuna.
  • Sardines.
  • Vitamin D fortified like milk, orange juice and cereals.

In general, it’s best to get most of your vitamins from food, but vitamin D may be the exception to that rule. Talk with your doctor to find out if you need a supplement.

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