Some medical researchers are predicting a harsher than usual flu season, so now's the time to start building up your immune system.

It's always best to get your essential vitamins and minerals from fresh organic foods.  Here's a list of the Top 20 choices to boost your immune system from nutritionists with the US Department of Agriculture:

1) Small red beans (dried)

2) Wild blueberries

3) Red Kidney beans

4) Pinto beans

5) Blueberries (cultivated)

6) Cranberries

7) Artichokes (cooked)

8) Blackberries

9) Prunes

10) Raspberries

11) Strawberries

12) Red Delicious apples

13) Granny Smith apples

14) Pecans

15) Sweet cherries

16) Black plums

17) Russet potatoes (cooked)

18) Black beans (dried)

19) Plums

20) Gala apples

To complement smart food choices, Nature's Sunshine offers many vitamins and nutritional supplements worth checking out.  I recommend starting with a good multivitamin, like the blackberry-flavored liquid Vitawave.  Colloidal Silver and Immune Stimulator are helpful for maintaining a robust immune system, too.  This link takes you directly to the Nature's Sunshine website.  Healthy shopping!