Foods rich in vitamin C, such as red bell peppers, citrus fruits and broccoli, may boost white blood cell production, reports Healthline. While there is no proof that any foods or diet changes increase white blood cell production in patients with cancer, high quality protein, vitamin B12 and folate provide essential nutrients and amino acids required to make white blood cells and may assist in boosting white blood cell count, according to Oncology Nutrition.
Zinc is a mineral that boosts the production of white blood cells in a body, reports Ask Dr. Sears. Foods rich in zinc include oysters, crab, beans, beef and zinc-fortified cereals. Garlic may also help increase white blood cell production. The top five fruits containing vitamin C to help boost white blood cell production are guava, papaya, strawberries, kiwi and cantaloupe.
Two herbs thought to boost white blood cell production are cat's claw and astragalus, notes Natural Society. Cat's claw is a vine native to the Amazonian forests traditionally used by local tribes to treat fevers, inflammatory disorders and bacterial infections. Astragalus is a substance used in traditional Chinese medicine. A study by the American Cancer Society determined patients who took astragalus with radiation recovered quicker and had an increased white blood cell count after two weeks of use.
Other foods that may naturally boost the immune system include spinach, which is rich in vitamin C, antioxidants and beta-carotene, yogurt, ginger, and almonds, according to Healtline.