Cystic Fibrosis

Cystic fibrosis (CF) is a genetic disorder affecting the lungs and digestive system, causing thick, sticky mucus that clogs the airways and blocks digestive enzymes from reaching the intestines. This leads to both respiratory problems and malnutrition. About 85-90% of CF patients have pancreatic insufficiency, meaning they cannot properly digest and absorb fats and fat-soluble vitamins without enzyme replacement. Nutritional support is a cornerstone of CF care alongside airway clearance and infection management.

CRITICAL: CF requires specialized multidisciplinary care at accredited CF centers. These supplements are part of standard CF nutrition management and should be guided by your CF care team. Doses need to be individualized based on lab monitoring. Never adjust enzyme doses without guidance.

* Pancreatic Enzyme Replacement Therapy (PERT) is essential for CF patients with pancreatic insufficiency. Without enzymes, fat and nutrients cannot be properly absorbed, leading to malnutrition, poor growth, and vitamin deficiencies. Enzymes must be taken with every meal and snack containing fat or protein.

* Vitamin D deficiency is nearly universal in CF due to fat malabsorption. Adequate vitamin D is crucial for bone health (CF patients are at high risk for osteoporosis), immune function, and potentially lung health. Higher doses than the general population are typically needed.

* Vitamin E is a powerful antioxidant that is poorly absorbed in CF. Deficiency can cause neurological problems. Water-miscible forms are better absorbed.

* Vitamin A is important for immune function, epithelial cell health (including the airways), and vision. Deficiency is common in CF.

* Vitamin K is needed for blood clotting and bone health. CF patients often have low vitamin K, which can contribute to bleeding problems and osteoporosis.

* Probiotics may help with the gut dysbiosis common in CF and might reduce pulmonary exacerbations by improving gut-lung axis health.

* Omega-3 Fatty Acids may help reduce the chronic inflammation that characterizes CF and potentially improve lung function.

* Salt (Sodium Chloride) supplementation is necessary because CF patients lose excessive salt in their sweat. This is especially important during hot weather, exercise, or illness.

* Zinc deficiency is common in CF and can impair immune function and wound healing.

* Calcium is important for bone health, especially alongside vitamin D supplementation.

Expected timeline: Enzyme therapy: immediate improvement in digestion and stool quality. Fat-soluble vitamins: check levels in 2-3 months. These supplements are a lifelong part of CF management with regular monitoring.