We all know that meat is the best source of iron. Especially red meat is the richest source of iron. Different types of meat like liver, ground beef and chicken breast can help you to boost your hemoglobin levels.Liver is the rich source of iron, vitamin B12 and folate. Ground beef without fat is also a rich source of iron as every 85 grams of ground beef gives 2.1 mg of iron. Chicken breasts can also give you a good amount of iron.