What effect do phytates and calcium have on iron absorption? What kinds of foods are…

103. What effect do phytates and calcium have on iron absorption? What kinds of foods are high in phytates?

104. What is the most common nutrient deficiency worldwide?

105. What population groups in the U.S. have the highest rates of iron deficiency?

106. What are the symptoms of iron deficiency?

107. What foods are good sources of iron?

108. What are the major roles of zinc?