For thyroiditis, focus on consuming light, low-fat foods rich in vitamins and high-quality protein; reduce intake of spicy, irritating, or greasy foods; individuals with hyperthyroidism should avoid iodine-rich foods.

1. It is recommended to consume light, low-fat foods, such as fresh green vegetables like bok choy and cabbage; foods rich in vitamins and high-quality protein, like citrus fruits, kiwis, lean meat, fish, and shrimp, are also recommended.

2. Reduce consumption of spicy, stimulating, and greasy foods such as chili peppers, onions, mustard, fried dough sticks, and fatty meats.

3. For those who also have hyperthyroidism, avoid iodine-rich foods such as kelp and seaweed.

Patients with thyroiditis need to seek medical attention promptly to identify the cause, and follow a reasonable diet and treatment plan under a doctor's guidance.