客戶詢問消化健康的纖維攝取。下列哪些建議是適當的？（選所有適合的）
A client asks the nurse about fiber intake for digestive health. Which advice is appropriate? (Select all that apply.)
- AIncrease fiber intake gradually to prevent gas and bloating✓ 正解逐漸增加纖維攝取量以預防脹氣和腹脹
- BDrink plenty of water when increasing fiber✓ 正解增加纖維攝取時應喝大量水
- CEat high-fiber cereals and legumes✓ 正解食用高纖維穀物和豆類
- DSupplement with fiber powders instead of whole foods以纖維粉補充劑代替全食物
- ELimit fiber intake to 5 grams per day to avoid constipation將纖維攝取量限制在每天5公克以避免便秘
膳食纖維（Dietary Fiber）對於維持腸道蠕動及預防便秘至關重要。若攝取過快，腸道細菌迅速發酵會導致產氣與腹脹，因此需循序漸進。同時，纖維需水分輔助膨脹以利排出，否則反而會造成腸道阻塞（Impaction）。全食物（Whole foods）如豆類、穀物含有豐富的膳食纖維及植化素，優於單一纖維粉補充劑。
Dietary fiber is essential for maintaining bowel motility and preventing constipation. If introduced too quickly, rapid fermentation by intestinal bacteria can cause gas and bloating, so intake should be increased gradually. Adequate fluid intake is also required to allow the fiber to expand and pass easily; otherwise, fecal impaction may occur. Whole foods such as legumes and grains are rich in dietary fiber and phytonutrients and are preferred over single-source fiber supplement powders.