Here are a few options for the WordPress post_tag description, along with explanations of why they might be useful:

**Option 1 (Concise and General):**

> 提供關於成人飲食營養的資訊，包含各種食物、營養素以及健康飲食建議。
>
> _(Provides information on adult nutritional diet, including various foods, nutrients, and healthy eating recommendations.)_

* **Why it works:** It’s direct, straightforward, and covers the core subject matter. It briefly highlights the key areas you might discuss within the tag.

**Option 2 (Emphasis on Health & Well-being):**

> 探索促進成人健康的營養知識，包括膳食規劃、重要營養素的攝取，以及如何透過飲食改善整體健康。
>
> _(Explore nutritional knowledge that promotes adult health, including meal planning, the intake of important nutrients, and how to improve overall health through diet.)_

* **Why it works:** It emphasizes the benefits related to health and the practical application of the content. The inclusion of “膳食規劃” (Meal Planning) broadens its appeal.

**Option 3 (Focus on Practicality & Specifics):**

> 了解成人每日所需的營養素，探討不同食物的營養價值，提供實用的飲食建議，以及針對特定健康狀況的營養方案。
>
> _(Learn about the daily nutritional needs of adults, explore the nutritional value of different foods, provide practical dietary advice, and nutritional plans for specific health conditions.)_

* **Why it works:** This is more specific, hints at different types of content that may appear under the tag. It is likely to attract visitors looking for targeted information related to health issues.

**Option 4 (Welcoming & Resourceful):**

> 歡迎來到成人營養的世界！在這裡，你將找到各種關於平衡飲食、營養素攝取、以及健康飲食的資源和建議。讓我們一起為您的健康加油！
>
> _(Welcome to the world of adult nutrition! Here, you’ll find all kind of resources and recommendations on balanced diets, nutrient intake, and healthy eating. Let’s cheer for your health together!)_

* **Why it works:** This option is friendlier and aims to include the user, making them feel welcome. This also encourages engagement.

**Tips for Choosing the Best Description:**

* **Consider your target audience:** Who are you trying to reach? (e.g., general public, people with specific health concerns, etc.).
* **Think about the content under the tag:** What type of articles or posts will be associated with this tag?
* **Keep it concise:** WordPress tag/category descriptions should be relatively brief.
* **Use relevant keywords:** This helps with search engine optimization (SEO), so make sure to include words like 飲食, 營養素, or 健康.

**How to use the description in WordPress:**

1. **Go to Posts > Tags in your WordPress dashboard.**
2. **Find the “成人營養” tag.**
3. **Click “Edit.”**
4. **Look for a “Description” field (usually below the tag’s name and slug boxes).**
5. **Paste your chosen description into the “Description” field.**
6. **Click “Update.”**

Choose the description that best suits your content and overall goals! Good luck!