In the prevention, the key is a balanced diet, added all kinds of vitamins and trace elements, not being choosy food. 在預防上，主要是均衡營養，補充各種維生素和微量元素，不可偏食挑食。
For example, food preferences can result from genetic preferences for sugary or fatty foods and socially-learned eating practices and taboos. 例如，食物偏好可能起因於對甜食或脂肪的遺傳偏好，或者是由於社會習得的飲食習慣和禁忌。
All food choices involve trade-offs. 各種食物選擇孰優孰劣，莫衷一是。
I believe you should know you are short on something before you start supplementing, making food choices superior. 我相信在你開始補充營養之前你知道自己缺乏什麼，然後做出好的食物選擇。
