Red blood cells are the main avenue through which oxygen is carried by your circulatory system to various parts of your body. White blood cells are an important part of your body's immune system, actively attacking unwanted contaminants in the bloodstream and destroying them to preserve your health. The number of these cells can be diminished by several factors, including your diet. Bolstering your consumption of certain nutrients, however, can help restore their number.
Anemia
Anemia is a common condition that reduces the number of red blood cells in your body, thereby reducing the body's ability to transport and use oxygen brought in through respiration. You may also suffer from a nutritional deficiency that inhibits the body's ability to produce new red and white blood cells -- these specific deficiencies can be difficult to diagnose without a doctor.
Other Causes
Some conditions, such as infections or serious external bleeding, can reduce both red and white blood cells in the body, weakening your circulatory system. Other conditions lower the white blood cells present in your body. HIV/AIDS is one such disease that gradually reduces your white blood cell count, weakening the immune system and making you more susceptible to illness.
Influence of Nutrition
Anemia is often improved by consuming foods that are high in iron, such as shellfish, fish, red meat and eggs. If you suspect a nutritional deficiency is lowering your blood cell counts, make sure you eat a well-rounded diet that includes multiple servings of fruits and vegetables -- these food groups tend to provide many different vitamins and minerals.
Considerations
A low blood cell count can be difficult to identify on your own. If you suspect a low blood cell count, consult a doctor about performing blood tests. Self-diagnosing could lead you to treat the wrong conditions while other unknown problems persist, putting you at a greater medical risk. Some conditions that lower your white blood cells, such as HIV/AIDS, require medication and professional attention to maximize your chance of survival.


