1, fatigue and fatigue Some experts say that iron is an important component of hemoglobin, which helps oxygen transport to all parts of the body. If iron is lacking, healthy blood cells in the body may be lacking, and you will feel exhausted.

2, poor breathing, iron deficiency in the human body, leading to a drop in blood oxygen, when you exercise or usually walk, you will feel breathless and out of breath.

3. Abnormal pallor of skin is a typical symptom of decreased blood flow and red blood cells, while iron deficiency in human body can cause decreased blood flow and red blood cells.

4. Brittle nails and iron deficiency can cause fingernails and toenails to become thin and brittle, and they are more likely to break. Depressed or spoon-shaped nails are also obvious iron deficiency symptoms.

5, muscle aches, iron deficiency, and boring. Reluctant exercise is more likely to lead to longer muscle aches after exercise, because iron deficiency will prolong muscle recovery. However, the low iron content in blood seriously affects endurance, making it very difficult to complete the same amount of exercise.

6. It's hard to concentrate. Some experts say that the synthesis of neurotransmitters may change in people with iron deficiency, which may lead to dysfunction such as inattention.

2 What should women eat for iron supplementation? 1. Animal liver is rich in various nutrients and is the first choice to prevent iron deficiency anemia. Every100g of pig liver contains 25mg of iron, which is also easily absorbed by human body.

2. Cherry Cherry is petite and lovely. It tastes sweet and sour, and the pulp is pure and beautiful. Among the fruit families that supplement iron, the iron content of cherries ranks first! The iron content in cherry per100g is as high as 59 mg.

3. Deep-sea fish such as salmon and mackerel not only contain omega-3 fatty acids beneficial to heart health, but also are high-quality food sources of iron.

4. The utilization rate of iron in pig blood, chicken blood and duck blood is 12%. If you pay attention to cleanliness, it will be processed into blood tofu and supplied to the collective.

Grapes are not only sweet and sour, but also have high nutritional value. Grape is one of the fruits for supplementing iron, which contains the most complex iron element and is a nutritious food for anemia patients. Eating grapes regularly is beneficial to neurasthenia and fatigue.

6. Whole-grain foods such as wheat, fortified cereals, oats and barley are also rich in iron, which can not only help digestion, lose weight, reduce blood fat, but also improve hemoglobin levels.