Immune Boosting Foods

“Let food be thy medicine and medicine be thy food," Hippocrates said. Since ancient times, humans around the world have looked to nature for both fuel and healing. Modern research shows many of the foods and herbs that people originally used as medicine, from South African hibiscus to Indian turmeric to Panamanian dark chocolate, still have immune-boosting health benefits today. Try integrating some of these tried-and-true remedies into your lifestyle, and eat to beat those winter flus.

- Meghan Gunn

01 Papayas

MEXICO

This fruit promotes good digestion, reduces inflammation and has strong antioxidant properties. Fermented papaya available in powdered form-is especially impressive: it has been shown to reduce oxidative stress in the elderly and in those with hypothyroidism and liver disease, and studies have found its extract can lower biomarkers linked to cancer.

02 Oranges

FLORIDA

Nature's Botox? Along with providing a rich source of immunity-boosting vitamin C, oranges also help increase the body's natural supply of collagen, which keeps skin smooth and supple, and hair and nails strong. Collagen also has a hand in aiding healthy digestion, and some studies have shown it to improve joint pain after exercise.

03 Blueberries

CANADA

These little fruits have become synonymous with "antioxidant" for a reason. Studies have shown that eating blueberries can help reduce DNA damage, potentially protecting against cancers, as well as helping lower cholesterol levels and improving cognitive function. Other studies have even shown that supplements can help children with executive functioning, and older adults with coordination and dexterity.

04 Dark Chocolate