Here are a few options for the WordPress post_tag description, catering to different levels of detail and potential needs:

**Option 1: Concise & Direct**

* **Description:** 了解食物中的營養成分，包括維生素、礦物質和蛋白質。
* **Translation:** Understand the nutritional components in food, including vitamins, minerals, and protein.
* **Use Case:** Best for general use and a clean, clear understanding of the tag’s purpose.

**Option 2: Slightly More Descriptive**

* **Description:** 深入探討各種食物的營養組成，分析其對健康的影響，幫助您做出更明智的飲食選擇。
* **Translation:** Delve into the nutritional composition of various foods, analyze their impact on health, and help you make more informed dietary choices.
* **Use Case:** Good for blogs or websites that want to emphasize the health benefits of understanding nutrition and aid users wanting to eat healthier.

**Option 3: Keyword-Rich (For SEO)**

* **Description:** 食物營養成分、維生素、礦物質、蛋白質、碳水化合物、脂肪、卡路里、健康飲食、膳食指南。
* **Translation:** Food nutrients/ingredients, vitamins, minerals, protein, carbohydrates, fats, calories, healthy eating, dietary guidelines.
* **Use Case:** Ideal if search engine optimization (SEO) is a priority. Includes keywords people might search for related to nutrition.

**Option 4: Emphasis on Specific Content Type**

* **Description:** 包括有關食品營養成分分析、營養食譜、健康飲食文章和營養補充品的資料。
* **Translation:** Includes information on food nutrient analysis, nutritious recipes, healthy eating articles, and nutritional supplements.
* **Use Case:** Useful if this tag is primarily connected to a very particular type of content.

**How to Choose:**

* **Your Audience:** Who are you writing for? Will they understand slightly more technical language?
* **The Scope of Your Content:** Does the content cover a wide variety of related facts and information? Or simply the basics?
* **SEO Goals:** Do you need to optimize for search engines?
* **WordPress Theme & Design:** Consider the length; some descriptions might be truncated (e.g. using three dots…) depending on the theme.

You can choose the description that best suits your needs. Remember, you can always change the description later. Good luck!