The well known vitamins A, D and C and the mineral zinc each have excellent research behind them. Thousands of scientific studies show their ability to help your immune system fight infections.
You get vitamin D from the sun in the spring and summer. It’s found in salmon and full fat dairy such as cheese and butter. You receive the important active retinol form of vitamin A in organ meats and full fat dairy. Both of these are fat soluble vitamins. Most of us need enough healthy fats -- from nuts, seeds, oil, avocados, full fat dairy and meat from healthy animals so we can benefit from these all-important vitamins.
Zinc is found in cells throughout the body and is needed for the body's immune system to work. Find it in oysters, beef, lamb, pumpkin seeds, squash, nuts, dark chocolate, pork, chicken and beans.
Get your vitamin C from a wide variety of fresh fruits and vegetables, especially peppers and both citrus and tree fruits.
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