*15.6.1 Sources*

The important sources of iodine are fish (cod and tuna), shrimp, and other seafood. Dairy products (milk, yogurt, and cheese), eggs, prunes, lima beans, and iodized salt.

### *15.6.2 Function*

Iodine is essential for the synthesis of thyroid hormone that is required for metabolism. The deficiency of thyroid hormone is called hypothyroidism can lead to issues with fatigue, joint pain, and fertility problems. Iodine plays an important role in proper bone and brain development.

### **15.7 Iron**

Iron deficiency is associated with several health impairments.

### *15.7.1 Sources*

Good sources of iron are organ meats, red meat, turkey, shellfish, white beans, pumpkin seeds, quinoa, nuts, dark chocolate, dried fruits, soybean flour, lentils, tofu, sardines, spinach, broccoli, cooked oysters, and fortified breakfast cereals.
