It turns out that we need more than an apple a day to keep the doctor away. If you are looking for ways to prevent colds and flu, then you might want to head out and visit the local grocery store. It is important to feed your body with certain foods with surprising nutrients in order to keep your immune system on guard. Next time you’re at the grocery store, stock up on these foods and add them to your diet for an extra flu-fighting punch. Most people tend to load up on Vitamin C after they’ve caught a cold. There’s a reason for that. Vitamin C triggers the production of white blood cells, which fights infections. Since our body is not capable of producing or storing it, daily intake of Vitamin C is needed. Citrus fruits are the best sources of Vitamin C. With a wide variety of fruits to choose from, it is easy to add a squeeze of Vitamin C into your diet. Broccoli is loaded with Vitamins A, C, E as well as several minerals and antioxidants; thus, making it one of the healthiest and most nutritious-packed foods you can put on your plate. Cook it as little as possible in order to keep its power intact. Or better yet, don’t cook it at all. Garlic does not only add a little zing to almost every cuisine in the world, it is also a must-have for your health. During the early years, garlic is known for fighting infections. Today, modern science has proven that it helps lower cholesterol and prevents hardening of the arteries. Just like Vitamin C, ginger is one of the most common ingredients most people turn to once they’ve caught colds. This is because ginger helps prevent that cold from taking hold. It contains the active ingredient allicin, which is capable of fighting bacteria and infection. Yogurt contains Probiotics, which are helpful in keeping the gut and intestinal tract free of disease-causing germs. When buying yogurt, make sure to check the labels and look for the ones that contain “live and active cultures”. This is beneficial as it can help boost your immune system and help fight diseases.