Pistachios are an excellent source of copper which aids in the absorption of iron into the body. Iron deficiency can cause anemia, a condition in which the blood lacks the proper volume of red blood cells. Symptoms of anemia include fatigue, shortness of breath, rapid heartbeat, difficulty concentrating, and dizziness. These nuts also contain magnesium, a mineral essential in regulating calcium levels, in the synthesis of vitamin D, and in the absorption of sodium, potassium, and phosphorus.

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