They can be on a standard diet, with a multivitamin. Large fluid losses. Nutrient malabsorption, poor jejunal adaptation. Acid hypersecretion, rapid gastric emptying and transit. May need IV for sustenance.
Problem is they smell bad and are expensive.
Watch out for femoral head and vertebral bodies especially. Cause watery diarrhea. The a subunit moves through the cell and interacts with adenylyl cyclase , and ribosylates the a subunit of adenylyl cyclase. This keeps adenylyl cyclase from being turned off, so cAMP levels rise dramatically. This leads to increased Protein Kinase A , which phosphorylates the CFTR Chloride channel , and opens it.