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. 2013 Aug 13;5(8):3184–3211. doi: 10.3390/nu5083184

Figure 1.

Figure 1

Relationship between dietary iron and zinc content of selected foods of plant origin (indicated by black triangles), foods of animal origin (indicated by red circles) (adapted from USDA National Nutrient Database [20]), and fortified breakfast cereals (indicated by green squares [15,16,17,18,19]). For foods of plant origin (black solid line): r = 0.68, P = 0.005. For foods of animal origin (red dash line): r = 0.71, P = 0.001. For fortified breakfast cereals (green dash-dot line): r = 0.87, P = 0.086. Significance does not change when the two outliers, Pacific oysters and US Cheerios®, are omitted. Values are based on uncooked nuts, carrot, oysters, raisins, oats and dairy products, and plain breakfast cereals; all other foods are cooked.