Here are a few options for a WordPress post_tag description for “人體營養” in Traditional Chinese, ranging in formality and focus:

**Option 1: Concise and General**

* **Description:** 健康飲食的基石。探索影響人體生理功能的必需營養素。 (The cornerstone of a healthy diet. Explore essential nutrients that impact human physiological functions.)

**Option 2: More Detailed and Benefit-Oriented**

* **Description:** 了解如何透過均衡的飲食給予身體所需的營養。學習各種營養素的重要性，促進健康，增強抵抗力，改善生活品質。 (Learn how to provide your body with the nutrients it needs through a balanced diet. Discover the importance of various nutrients to promote health, boost immunity, and improve quality of life.)

**Option 3: Focusing on Resources and Content**

* **Description:** 深入了解關於人體營養的資訊，包括食物種類、飲食建議、營養分析，以及相關的健康資訊。 (Dive deep into information about human nutrition, including food types, dietary recommendations, nutritional analysis, and related health information.)

**Option 4: Simple and Straightforward**

* **Description:** 關於人體營養的所有資訊。 (All about human nutrition.)

**To Use in WordPress:**

1. **Go to your WordPress admin panel.**
2. **Navigate to Post -> Tags (or Posts -> Categories if you’re using Categories instead of tags).**
3. **Find the tag “人體營養” (or create it if it doesn’t exist).**
4. **In the “Description” field, paste your chosen description from above.**
5. **Click “Update” or “Save”.**

Choose the description that best fits the tone and purpose of your website and the content you’ll be tagging with “人體營養”.