Which macronutrient emphasis characterizes the cystic fibrosis diet?

Which macronutrient emphasis characterizes the cystic fibrosis diet?

• A. Low calorie, low fat, low protein
• B. High calorie, high fat, high protein
• C. High carbohydrate with moderate fats
• D. High fiber and moderate protein

Answer: (B)

Cystic fibrosis nutrition centers on meeting very high energy needs and addressing fat malabsorption from pancreatic insufficiency. Because the body works harder and infections can increase energy expenditure, and because fat absorption is reduced without enzyme support, the diet is designed to be very calorie-dense and rich in fat and protein. Fat supplies more calories per gram than any other macronutrient, making a high fat intake a key way to achieve the energy requirements while supporting growth and weight maintenance. Adequate protein supports tissue repair and growth, which is crucial in CF, and fats provide essential fatty acids and help with fat-soluble vitamin absorption when enzyme therapy is used. So, a high calorie, high fat, high protein approach best meets the metabolic and absorption challenges in cystic fibrosis.

Cystic fibrosis nutrition centers on meeting very high energy needs and addressing fat malabsorption from pancreatic insufficiency. Because the body works harder and infections can increase energy expenditure, and because fat absorption is reduced without enzyme support, the diet is designed to be very calorie-dense and rich in fat and protein. Fat supplies more calories per gram than any other macronutrient, making a high fat intake a key way to achieve the energy requirements while supporting growth and weight maintenance. Adequate protein supports tissue repair and growth, which is crucial in CF, and fats provide essential fatty acids and help with fat-soluble vitamin absorption when enzyme therapy is used. So, a high calorie, high fat, high protein approach best meets the metabolic and absorption challenges in cystic fibrosis.