Malabsorption Blood Test (MBT) to Determine Exocrine Pancreatic Function and Related Quality of Life in Chronic Pancreatitis

Inclusion Criteria

* ≥ 18 years of age
* RAP (≥ 2 documented lifetime attacks with ≥ 2 of 3 acute pancreatitis criteria) OR Chronic pancreatitis (Cambridge I or II with documented history of AP OR Cambridge III or IV criteria)
* Fecal elastase ≥ 50 within the preceding 12 months

Exclusion Criteria

* Allergy/Intolerance to PERT/MBT
* Taking medications that alter fat absorption or that supplement the fatty acids being studied (e.g. orlistat, ursodeoxycholic acid, Fatty-15 fatty acid supplement etc.)
* Taking GLP-1 Receptor Agonist therapy
* Fecal elastase \<50 within preceding 12 months OR pre-existing diagnosis of severe Exocrine Pancreatic Insufficiency, or ongoing steatorrhea
* Receiving Pancreatic Enzyme Replacement Therapy for \> 5 days within the preceding 30 days
* Acute Pancreatitis attack (documented and meeting at least 2 of 3 criteria) within the preceding 90 days
* History of pancreatic resection or underlying malabsorptive disease
* Pregnant or Breast Feeding
* Other significant medical condition as judged by Principal Investigator