Anemia refers to a condition where there are too few red blood cells or insufficient hemoglobin in the blood. Medically, it is classified based on its causes into types such as iron-deficiency anemia, megaloblastic anemia, and hemolytic anemia, with iron-deficiency anemia being the most common. The treatment for iron-deficiency anemia most commonly and effectively involves oral or intravenous iron supplements. However, in clinical practice, many patients report that oral iron supplements are not as effective as expected.
Unknown to many, there are numerous factors that can affect the efficacy of iron supplements, which must be taken into consideration during use.
1. Foods high in calcium (such as tofu) and high-phosphate foods (such as milk) can form precipitates by chelating with iron supplements and should therefore be avoided when taken together.
2. When supplementing iron for anemia, one should adhere to the principle of "small doses, long-term." Strictly follow the doctor's prescription for medication and never increase the dosage on your own to avoid iron poisoning; also, never take a single large dose, as this can easily lead to acute iron poisoning. Symptoms of iron poisoning include: dizziness, nausea, vomiting, diarrhea, abdominal pain, shock, etc. In severe cases, it can lead to coma, convulsions, and even death.
3. When taking oral iron supplements, place the tablet on the tongue and swallow it directly with water; do not chew the medication to avoid staining the teeth and affecting your appearance.
4. Take the medication after meals to avoid taking it on an empty stomach, which can reduce nausea and vomiting caused by gastrointestinal irritation. Taking vitamin C or fruit juice at the same time is also beneficial, as an acidic environment facilitates iron absorption.
5. The preferred oral iron supplements are ferrous sulfate, ferrous fumarate, and ferrous gluconate, as iron is absorbed in its ferrous (divalent) form but functions in its ferric (trivalent) form.
6. While taking oral iron supplements, avoid drinking strong tea or coffee, as they contain large amounts of tannic acid, which can form insoluble iron precipitates and hinder iron absorption. Milk and other alkaline substances can also affect iron absorption and should be avoided or consumed in minimal amounts. Dairy products (especially milk) contain very little iron and should not be consumed in large quantities, as they can reduce the amount of iron already present in the gastrointestinal tract.
7. Be aware of the adverse effects of certain medications on iron absorption: Tetracycline antibiotics can form insoluble complexes with iron supplements, which is detrimental to absorption. Therefore, simultaneous use should be avoided. If both must be used, they should be administered at least 3 hours apart.
8. Enhance dietary care. A correct and balanced diet can prevent and treat iron-deficiency anemia. For patients already suffering from iron-deficiency anemia, relying solely on dietary therapy is not very effective, but it can serve as an adjunct treatment to prevent recurrence. Bad habits such as picky eating, selective eating, and loss of appetite should be corrected. The diet should be varied, and one should consume more iron-rich and nutritious foods, such as: meats, eggs, fish, various seafood (like kelp and seaweed), animal liver and blood, coarse grains like buckwheat and sweet potatoes, bean products, mushrooms, black fungus, and a variety of fresh fruits and vegetables.
9. After several months of treatment, when clinical symptoms improve and hemoglobin levels return to normal, do not stop the medication immediately. Continue taking it under a doctor's guidance for another 3-6 months to replenish the body's stored iron and prevent a relapse of anemia.
10. During oral iron supplementation treatment, the iron reacts with hydrogen sulfide in the large intestine to form iron sulfide, which causes the stool to turn a dark brownish-black, similar to gastrointestinal bleeding. There is no need to be alarmed by this, as it will return to normal after stopping the iron supplements.