Iron deficiency anemia is one of the most common nutrient shortfalls in the world. When people get too little iron, they’re at an increased risk for infection. Dry beans are among the best sources of this mineral and pairing them with vitamin C-rich foods can increase iron absorption dramatically.

Even if you’re limiting trips to the grocery store right now, you may have plenty of vitamin C-rich ingredients on hand. Cook beans with frozen spinach and canned tomatoes to create a satisfying soup that is packed with iron and vitamin C. Simmer baked beans with chunks of canned pineapple for a savory-sweet dish to serve over rice. Keep frozen green or red peppers on hand to sauté with onions and stir into cooked beans for flavor and plenty of vitamin C.

While there is no magic potion or pill that can boost your immunity, a balanced diet that meets nutrient needs can keep the immune system functioning well.