Produced in the bone marrow, white blood cells (WBCs) are the disease-fighting agents of your immune system. A healthy body has an abundance of WBCs that travel to the affected organs whenever an infection strikes.
The normal range of WBCs in the blood is between 4,500 and 10,000 per microliter. When the WBC count drops below 4,500, it is a cause for concern. This condition is called leukopenia.
Another condition called neutropenia is a type of leukopenia and is characterized by a deficiency of neutrophil granulocytes, a specific type of white blood cells that are the most abundant in the body.
Some common causes of leukopenia include acute viral infections such as a cold and influenza, copper and zinc deficiency, typhoid, dengue, malaria, tuberculosis and Lyme disease.
Other causes include aplastic anemia; cancers such as bone cancer, which damages the bone marrow, and lymphoma, which is a cancer that begins in the WBCs; chemotherapy and radiation therapy, which disrupt bone marrow activity; and autoimmune diseases like lupus.
Lack of adequate WBCs weakens your immune system, making you more susceptible to disease-causing bacteria and viruses.
If the deficiency is not treated, these diseases will strengthen over time, rendering your body unable to fight the diseases at all.
Here are top 10 ways to help increase the white blood cell count in your body.
1. Cat’s Claw (Uncaria tomentosa)
Cat’s claw is a South American vine found in the rainforests in the Amazon that possesses incredible immune-boosting properties.
A 2001 study published in Phytomedicine notes that when 12 healthy adult subjects were administered daily doses of cat’s claw water extract supplements for 12 weeks, they experienced an increased production of leukocytes.
Studies also have demonstrated the efficacy of cat’s claw consumption in patients who had a low WBC count post chemotherapy.
However, cancer patients should consult their doctors before consuming this herb, as it is known to have promoted survival of leukemic cells in lab conditions.
Note: Consult your doctor before consuming this herb if you are on any kind of medication. If you take blood thinners, use cat’s claw with caution as it could induce bleeding.
Also known as “huang qi” or “huang chi”, astragalus is a Chinese herb derived from the astragalus membranaceus plant. It possesses terrific WBC-promoting properties.
A 2006 study published in Phytotherapy Research notes that when patients consumed astragalus separately and in combination with other herbs for seven days, the activity of the immune cells was strengthened.
While astragalus does not eliminate cancer from its roots, it significantly boosts the immune systems of cancer patients by promoting phagocytosis in the existing WBCs.
A 2006 study published in Cancer Letters notes that the astragalus membranaceus plant exhibits T-cell-boosting properties in cancer patients. T-cells are the body’s vital immunity-boosting WBCs.
Astragalus is available as tablet or capsule supplements, as a tincture (alcohol extract) and prescribed by some doctors in an injectable form.
Note: Consult your doctor before taking this herb for any possible side effects and drug interactions.
Echinacea is a well-researched, immune-boosting Native American herb.
Unlike vaccines that target a specific disease and antibiotics that directly attack bacteria, echinacea stimulates the activity of the WBCs that fight diseases through a process called phagocytosis.
A 2005 study published in the Journal of Clinical Pharmacy and Therapeutics notes that 11 healthy individuals (between 26 and 61 years old) who consumed two echinacea tablets daily for 14 days experienced an increase in the overall number of WBCs and stimulated activity of leucocytes.
Note: Patients who have liver disorders or diabetes should consult their doctors before consuming this herb. Consult your doctor if you are on any kind of medication before consuming this herb. If you take blood thinners, use echinacea with caution as it could induce bleeding.
4. Omega-3 Fatty Acids
Dietary omega-3 fatty acids increase the body’s production of phagocytes, a type of WBCs that engulf harmful foreign entities like bacteria entering our bodies through a process called phagocytosis.
A 2001 study published in Cancer Epidemiology, Biomarkers and Prevention notes that the levels of WBCs in female volunteers increased when they took dietary fatty acids.
In addition, a 2013 study published in the Journal of Leukocyte Biology notes that fish oil consumption promotes the activity of a type of WBCs called B cells.
Foods with the highest omega-3 fatty acid content include flaxseed oil, fish oil, chia seeds, walnuts, salmon, oysters, spinach and soybeans.
5. Vitamins B6, B12 and Folic Acid (Folate)
Vitamins B6 and B12 as well as folic acid are all responsible for producing WBCs in the body.
A 2011 study published in the Journal of Medical Case Reports notes that a neutropenia patient reported significantly decreased levels of vitamins B6, B12 and folic acid. Oral vitamin B6 supplementation increased the level of neutrophil WBCs and corrected her condition.
Severe neutropenia can cause cancer. The study further suggests a thorough screening for deficiencies of vitamins B6, B12 and folic acid in neutropenia patients for focused treatment.
Foods rich in vitamin B6 include sunflower seeds, turkey, chicken, dried nuts, avocados, bananas and spinach.
Foods rich in vitamin B12 include fortified breakfast cereals, low-fat milk and yogurt, chicken, clams, salmon and trout.
Foods rich in folic acid include dried beans and peas; lentils; leafy greens like broccoli, spinach, okra and asparagus; and citrus fruits. Folic acid supplements are also an option.
Note: Consult your doctor for recommended daily doses of these foods/supplements suitable for your health conditions and any prescribed medication.
Healthy adults have between 50 and 80 milligrams of copper in their blood. A copper deficiency leads to a number of disorders, including leukopenia.
A 2002 study published in Blood notes that leukopenia and neutropenia is often misdiagnosed as myelodysplastic syndrome and not related to a copper deficiency.
A later 2012 study published in Current Opinion in Hematology further states the same and suggests that patients diagnosed with leukopenia must be tested for copper deficiency, as it is often a leading cause of the condition.
Foods rich in copper include seafood like oysters, lobster and crab; kale; mushrooms; seeds like flaxseeds and pumpkin seeds; nuts like brazil nuts, walnuts, pine nutsand pistachios; pulses, dried fruits and avocados. Copper supplements are also an option.
Note: Consult your doctor for the recommended daily doses of these foods/supplements suitable for your health conditions and any prescribed medication.