Core Viewpoint - Dietary adjustments are crucial for individuals with thyroid dysfunction, with selenium and magnesium-rich fruits providing essential nutritional support for thyroid health, but they should not replace medical treatment for thyroid diseases [1][2]. Group 1: Selenium-Rich Fruits - Selenium is a vital trace element and a key component of glutathione peroxidase, acting as an "antioxidant shield" for thyroid cells by effectively eliminating free radicals generated during hormone synthesis [1]. - Adequate selenium intake can help regulate immune responses and reduce inflammation in autoimmune thyroid diseases such as Hashimoto's thyroiditis [1]. - Common selenium-rich fruits include mulberries, jackfruit, and longan [1]. Group 2: Magnesium-Rich Fruits - Magnesium is essential for over 300 enzymatic reactions in the body and is crucial for maintaining normal thyroid function, acting as a cofactor in thyroid peroxidase and directly participating in hormone synthesis [1]. - Magnesium deficiency may affect thyroid hormone production and is associated with common symptoms of hypothyroidism, such as fatigue and muscle weakness [1]. - Common magnesium-rich fruits include bananas, avocados, blackberries, and kiwis [1]. Group 3: Dietary Recommendations - Selenium and magnesium-rich fruits should be part of a healthy, balanced diet rather than being viewed as "miracle cures" [2]. - It is recommended to consume fresh fruits directly, avoiding juices or dried fruits, with a daily intake of 200 to 350 grams [2]. - Patients with thyroid diseases should be cautious with high-sugar fruits like jackfruit, longan, and ripe bananas to prevent significant blood sugar fluctuations [2]. Group 4: Nutritional Sources and Guidelines - Fruits are not the primary source of selenium and magnesium; animal organs, seafood, and Brazil nuts have higher selenium content, while green leafy vegetables, nuts, and whole grains are better sources of dietary magnesium [2]. - The Chinese Nutrition Society recommends a daily selenium intake of 60 micrograms for adults, as excessive supplementation can pose risks [2]. - Processed foods, excessive alcohol, and caffeine can interfere with magnesium absorption [2].

Core Viewpoint - The main climate characteristic from the White Dew to the Cold Dew period is "dryness," making "reducing spicy and increasing sour, moisturizing dryness, and nourishing the lungs" the consistent core of dietary adjustment [1] Group 1 - The transition from White Dew to Cold Dew marks a significant change in climate, emphasizing the need for dietary adjustments to cope with dryness [1] - Experts suggest that the focus should be on reducing spicy foods and increasing sour foods to maintain health during this period [1] - The recommendation to moisturize dryness and nourish the lungs is highlighted as essential for well-being in autumn [1]