Anemia and iron deficiency in the blood

Anemia and Iron Deficiency in the Blood

Anemia, also known as low blood or blood deficiency, is a condition that can be easily detected and treated depending on its cause. A proper, varied diet rich in iron is a major factor in preventing anemia, while medications and dietary supplements help restore iron levels in the body as quickly as possible.

Anemia occurs when the number of red blood cells (erythrocytes) and hemoglobin levels decrease. It can result from blood loss, reduced production of red blood cells, or excessive breakdown of blood cells.

Types of Anemia by Cause

1. Anemia due to impaired red blood cell production:

   • Iron-deficiency anemia (Sideropenic anemia): The most common type, caused by insufficient iron intake, impaired absorption in the digestive tract, blood loss, or increased iron demand. In women, menstrual blood loss is a frequent cause. Iron loss may be small initially, but over time it can lead to iron deficiency and then anemia.

   • Megaloblastic anemia: Often caused by vitamin B12 or folic acid deficiency, or disorders in their metabolism.

   • Sickle cell anemia: A hereditary form where red blood cells have a sickle shape.

   • Pernicious anemia: Caused by vitamin B12 deficiency.

   • Aplastic anemia: Severely reduced production of red blood cells in the bone marrow.

2. Anemia due to red blood cell breakdown:

   • Hemolytic anemia.

3. Anemia due to blood loss:

   • Causes include heavy menstruation, gastrointestinal disorders (hemorrhoids, gastritis), tumors, certain medications, and NSAIDs.

Symptoms of Anemia and Iron Deficiency

Symptoms are often noticeable quickly, as anemia affects multiple systems in the body:

• Cardiorespiratory system: Shortness of breath (dyspnea), rapid heartbeat (tachycardia), palpitations

• Central nervous system: Fatigue, lack of motivation, tinnitus (ringing in the ears), dizziness, impaired concentration and memory

• Vascular system: Pale skin, mucous membranes, and conjunctiva

• Urogenital system: Menstrual problems, decreased libido

Diagnosis of Anemia

Diagnosis requires a detailed medical history and laboratory tests to measure:

• Red blood cell count (RBC)

• Hemoglobin (Hb)

• Hematocrit (Hct)

• Reticulocyte count (Rtc)

• Red blood cell indices (MCV, MCH, MCHC, RDW)

• Ferritin

Reference values:

Notes:

• Ferritin is a protein synthesized in the liver and indicates iron stores. Low ferritin suggests iron deficiency (e.g., pregnancy, insufficient iron intake, acute or chronic bleeding), while high ferritin can result from infections, chronic inflammatory diseases, heart or liver disorders, or malignancy.

• Red blood cell indices help determine the type of anemia:

  • Low MCV and MCHC → iron-deficiency anemia

  • High MCV and MCHC → vitamin B12 or folate deficiency (megaloblastic anemia)

  • Acute bleeding → low RBC, hemoglobin, and hematocrit with normal MCV and MCH

  • Hereditary spherocytosis → very small RBCs, MCV may drop below 60

How to Quickly Replenish Iron

Iron deficiency cannot be corrected instantly because the body’s iron stores (ferritin) must be refilled, but supplementation can quickly relieve symptoms such as fatigue and drowsiness.

Iron medications come in several forms, including:

• Ferrous gluconate, succinate, sulfate, lactate, fumarate

Therapy duration:

• At least 3 months

• Hemoglobin normalization may be seen after 3–4 weeks

• Red blood cells live ~120 days, so iron stores take time to refill

Precautions:

• Iron interacts with some medications (tetracyclines, antacids)

• Common side effects: constipation, stomach discomfort

• Avoid caffeine-containing drinks (coffee, tea, cocoa) 1–2 hours before or after taking iron, as they inhibit absorption

Natural Remedies for Iron Deficiency

The body cannot produce iron naturally, so dietary intake and supplements are essential.

• Supplements typically provide up to 20 mg of iron, often combined with:

  • Vitamin C (enhances absorption)

  • B vitamins (B1, B2, B6, B12)

  • Sometimes copper

• Forms of iron in supplements:

  • Fe²⁺ (ferrous iron): Well absorbed, may cause mild digestive discomfort unless slow-release

  • Fe³⁺ (ferric iron): Poorly absorbed, many side effects

  • Iron chelates (e.g., Fe-bisglycinate) or polysaccharide iron complexes: High bioavailability, gentle on the digestive system

Factors affecting iron absorption:

Iron-Rich Foods

Iron comes in heme (animal sources) and non-heme (plant sources) forms.

• Heme iron is absorbed more efficiently

• Non-heme iron absorption improves when combined with animal proteins or vitamin C

Animal sources: Lean red meat, liver, fish (sardines), shellfish, eggs
Plant sources: Beans, lentils, chickpeas, spinach, blackberries, beetroot, broccoli, prunes, apricots, beet greens, whole wheat, barley, nuts

Iron Deficiency in Men

Iron deficiency in men may indicate insufficient intake or underlying health issues, such as gastrointestinal bleeding (ulcers, hemorrhoids, ulcerative colitis, diverticula, tumors).

Anemia in Children

Children and adolescents are particularly vulnerable due to higher iron needs during growth.

• Eat a variety of plant and animal iron sources

• Supplements may be necessary if children refuse iron-rich foods

Excess Iron in the Blood

Excess iron is relatively rare, as the digestive system regulates absorption. Causes may include:

• Frequent blood transfusions

• Overuse of iron supplements

• Liver disease

Symptoms develop gradually: bronzed skin, chronic fatigue, delayed puberty, reduced libido, cirrhosis

Conclusion

Anemia is a condition that is easily detected and treatable depending on the cause. It can also signal other health issues. Most anemia symptoms disappear quickly with increased iron intake.

• Prevention: A diverse, iron-rich diet, especially important for vulnerable groups

• Treatment: Medications and supplements help restore iron levels

• Professional guidance: A doctor or pharmacist can help choose the best form, composition, and dosage of iron based on the type and cause of anemia