Abdominal distension, severe pain, or absent bowel movements may signal obstruction and must be reported.
Before you read
Test yourself first: 5 questions
Question 1 of 5
A client with diverticulosis (no active inflammation) asks how to prevent flare-ups. Which dietary teaching is correct?
Answer: A. A high-fiber diet with adequate fluids prevents constipation and reduces colon pressure, helping prevent diverticulitis. During an acute diverticulitis flare, fiber is temporarily restricted, but for prevention high fiber is recommended.
Question 2 of 5
A nurse counsels the parents of a child newly diagnosed with cystic fibrosis about nutrition. Which dietary recommendation is appropriate?
Answer: B. Children with cystic fibrosis have high caloric needs and malabsorption, so a high-calorie, high-protein diet with pancreatic enzyme supplementation and fat-soluble vitamins (A, D, E, K) is recommended.
Question 3 of 5
A child with cystic fibrosis needs which dietary teaching?
Answer: B. Cystic fibrosis impairs pancreatic enzyme secretion and causes malabsorption — clients take pancreatic enzymes with meals/snacks and follow a high-calorie, high-protein diet with fat-soluble vitamins. A low-calorie diet worsens malnutrition.
Question 4 of 5
A nurse is teaching a client with chronic cholecystitis about dietary management. Which instruction should the nurse include?
Answer: B. Because fat triggers gallbladder contraction and biliary pain, clients with cholecystitis should follow a low-fat diet, limiting fried foods, fatty meats, and rich dairy. A high-fat or high-fried diet would provoke symptoms. Protein and carbohydrates are generally tolerated in moderation, so a low-fat eating pattern is the key teaching point.
Question 5 of 5
A nurse teaches a client about the DASH eating plan for blood pressure control. Which statement by the client indicates correct understanding?
Answer: A. The DASH (Dietary Approaches to Stop Hypertension) plan emphasizes fruits, vegetables, whole grains, and low-fat dairy while limiting sodium, saturated fat, and red meat. Increasing canned and processed foods (high sodium) contradicts the plan, as does eliminating all dairy or adding salt to taste.
Keep the streak going with more questions like these, each with a full rationale.
What is high-fiber diet?
Recommended intake is about 25 to 38 grams per day. Fiber adds bulk and draws water into the stool, easing constipation and supporting gut health.
Key points to remember
- Soluble fiber lowers cholesterol and slows glucose absorption; insoluble fiber adds bulk and speeds transit.
- High fiber prevents constipation, diverticulosis, and helps manage hemorrhoids and weight.
- Fiber must be increased gradually and paired with adequate fluid to avoid bloating, gas, and obstruction.
- Whole grains, bran, beans, berries, and raw vegetables are key high-fiber sources.
- A high-fiber diet is contraindicated in bowel obstruction, acute diverticulitis, and before bowel surgery.
Nursing priorities
- Encourage gradual fiber increase to minimize cramping and flatulence.
- Ensure adequate fluid intake, generally at least 2 liters per day unless restricted.
- Monitor bowel patterns and abdominal comfort.
- Teach selection of high-fiber foods across grains, fruits, vegetables, and legumes.
- Assess for conditions where fiber is contraindicated before promoting it.
Patient teaching
- Add fiber slowly over several weeks to let the gut adjust.
- Drink plenty of water as you increase fiber to prevent constipation.
- Choose whole-grain bread, brown rice, beans, and fruit with the skin on.
- Expect more frequent, softer stools and some initial gas.
Red flags: report now
- Abdominal distension, severe pain, or absent bowel movements may signal obstruction and must be reported.
- Never push high fiber during acute diverticulitis or suspected bowel obstruction.
- Inadequate fluid with high fiber can cause impaction or obstruction.
References
Clinical references for this topic

