Here are a few options for the WordPress post tag description, with increasing levels of detail:

**Option 1 (Concise):**

* **Description:** 了解豆漿的熱量資訊，健康飲食的關鍵。 (Understand the calorie information of soy milk, the key to healthy eating.)

**Option 2 (Slightly More Detailed):**

* **Description:** 探究豆漿熱量含量，包括不同製作方式、添加物對其影響，幫助您做出更明智的飲食選擇。 (Explore the calorie content of soy milk, including the impact of different production methods and additives, to help you make more informed dietary choices.)

**Option 3 (Informative, incorporating relevant keywords):**

* **Description:** 關於豆漿熱量的全面資訊，包括原味豆漿、加糖豆漿、不同品牌、以及與其他飲品的熱量比較。 協助您規劃低卡、健康的飲食，保持理想體重。 (Comprehensive information about the calories in soy milk, including plain soy milk, sweetened soy milk, various brands, and comparisons with other drinks. Help you plan a low-calorie, healthy diet and maintain an ideal weight.)

**Option 4 (Focus on SEO):**

* **Description:** 豆漿熱量、卡路里、營養成分全解析！ 想知道一杯豆漿有多少熱量嗎？ 了解不同比例的豆漿熱量差異，以及如何計算豆漿熱量，幫助你控制飲食，達到減肥、增肌目標！ (Soy milk calories, nutritional content analyzed! Want to know how many calories are in a cup of soy milk? Understand the calorie differences of soy milk in different proportions and how to calculate soy milk calories, helping you control your diet and achieve your weight loss and muscle gain goals!)

**How to Choose:**

* **Option 1:** Use this if you want a simple and short description.
* **Option 2:** A good balance of detail.
* **Option 3:** Provides more information and can catch users’ attention
* **Option 4:** This is the most SEO-focused option and includes several relevant keywords that people might search for. This is good to attract potential readers looking for information on soy milk calories.

Remember to choose the description that best suits the overall context and goals of your blog. I would also recommend, if your blog is on the topic of nutrition in general, to use more descriptive keywords such as “營養” or “健康飲食” as well to help with your search engine optimization efforts.