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Looking to boost your immune system? There are so many great options to choose from, whether you’re strolling the produce aisle or perusing the frozen section.

I've listed my top five, favorite fresh items, all of which are packed with vitamin C and beta-carotene — plus, most people absolutely love these flavors. I also snuck in mushrooms because they boast anti-viral properties. Feel free to choose between fresh or frozen produce. Most produce is picked and frozen at the peak of ripeness, so it has the same nutritional value as its fresh counterpart. Just look for packages without any added salt or sugars.