General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Eat iron-rich foods (meat, liver, eggs, fish, dal, beans, green leafy vegetables) with vitamin C foods (amla, guava, citrus). Avoid tea or coffee with meals.
Eat iron-rich foods (meat, liver, eggs, fish, dal, beans, green leafy vegetables) with vitamin C foods (amla, guava, citrus). Avoid tea or coffee with meals. Treat worms, and take iron and folic acid in pregnancy as provided. Find the cause with a health worker.
SI summary (own words); NIH and WHO as references