Here are a few options for the WordPress post_tag description, with varying levels of detail, to best suit your needs. They are all in Traditional Chinese:

**Option 1 (Short & Sweet):**

> 關於飲食與健康保養的相關資訊，包括食譜、食材選擇、飲食習慣等。
>
> *Translation: Information related to diet and health care, including recipes, food choices, and eating habits.*

**Option 2 (More Detailed):**

> 藉由正確的飲食方式，達到身體內外保養的效果。本分類分享各種營養食譜、天然食材的益處、飲食禁忌、健康飲食習慣的建立。希望幫助您透過飲食，提升活力，保持健康。
>
> *Translation: Achieving internal and external health through proper dietary choices. This category shares various nutritious recipes, the benefits of natural ingredients, dietary taboos, and the establishment of healthy eating habits. We hope to help you enhance vitality and maintain health through your diet.*

**Option 3 (Focus on Preventative Care):**

> 以飲食為根本，從日常飲食習慣著手，預防疾病，維持健康。本分類包含食譜、食材挑選指南、飲食建議，幫助您打造健康的飲食生活，預防勝於治療。
>
> *Translation: Taking diet as the foundation, starting with daily eating habits to prevent illness and maintain health. This category includes recipes, ingredient selection guides, and dietary recommendations, helping you create a healthy diet and prevent illness.*

**Option 4 (Focus on Specific Aspects – if you have recipes specifically for this in your content):**

> 各種美味又健康的食譜，讓您享受美食的同時，也能滋養身體。 包括食材搭配、烹飪技巧，以及不同飲食需求的建議。
>
> *Translation: Delicious and healthy recipes, allowing you to enjoy food while also nourishing your body. Includes ingredient combinations, cooking techniques, and recommendations for different dietary needs.*

**When choosing, consider:**

* **Your content:** Does your content focus on recipes, general health advice, or specific dietary needs?
* **Your target audience:** Are they beginners or more experienced with health and wellness?
* **SEO:** Use keywords that your audience might search for (e.g., recipes, diabetes, weight loss, etc.).

I recommend you copy and paste the option that best fits the content you are writing about and the overall goals of your blog. Don’t hesitate to modify it further to better represent your specific approach to “飲食保養.”