10 Superfoods to Boost Your Immune System This Winter

As the temperature drops, it's essential to keep your immune system strong. The food you eat plays a crucial role in preventing colds and flu. Here are some of the best foods to naturally boost your immunity.

1. Citrus Fruits

Most people turn straight to vitamin C after they've caught a cold. That's because it helps build up your immune system. Vitamin C is thought to increase the production of white blood cells, which are key to fighting infections.

2. Red Bell Peppers

Ounce for ounce, red bell peppers contain almost 3 times as much vitamin C as a Florida orange. They're also a rich source of beta carotene. Besides boosting your immune system, vitamin C may help you maintain healthy skin.

3. Broccoli

Broccoli is supercharged with vitamins and minerals. Packed with vitamins A, C, and E, as well as fiber and many other antioxidants, broccoli is one of the healthiest vegetables you can put on your plate.

4. Garlic

Garlic is found in almost every cuisine in the world. It adds a little zing to food and it's a must-have for your health. Early civilizations recognized its value in fighting infections.