Sweet potatoes have double immune-boosting power thanks to vitamin C and beta-carotene (an antioxidant that our body converts to vitamin A); both vitamin A and vitamin C are believed to support healthy immune system function.
Get rid of germs before they can make you sick; laboratory test results show that garlic has anti-bacterial, anti-viral, and anti-fungal properties, giving it some serious infection-fighting potential.
Oats are a good source of beta-glucans (naturally occurring sugars) that have been shown to promote a strong and healthy immune system. If you don’t like oats, try barley instead; it’s also a good source.
When you’re choosing a yogurt, select one that contains live and active cultures (or “good” bacteria). The good bacteria that the probiotics support can have a positive impact on many aspects of your body’s immune response.
Mushrooms are a good natural source of selenium, an antioxidant that strongly influences immune response. Cremini and shiitake mushrooms are among the most selenium-rich.
Kristie Collado is The Daily Meal’s Cook Editor. Follow her on Twitter @KColladoCook.