# Nutrition and diets in pancreatic cancer
Nutrition plays a complex role in pancreatic cancer. On one hand, the body needs sufficient energy and building materials, especially if the pancreas has been (partially) removed or if treatment places heavy demands. On the other hand, researchers are investigating whether certain dietary patterns can influence the course of the disease or treatment. Below you will find an overview of what is known.
High-protein diet and amino acid restriction
ResearchediPositive results in clinical studies, not yet standard treatment
In pancreatic cancer, there is growing attention to the role of certain amino acids (building blocks of proteins) in disease mechanisms. Studies suggest that certain amino acids (such as glutamine and arginine) may help cancer cells grow, and that limiting them could improve sensitivity to certain treatments. These are, however, still laboratory studies and animal tests; research in patients is ongoing.
The body does need protein, especially after surgery or intensive treatment. This is why nutrition in pancreatic cancer is tailored: getting enough protein, but in a way that aligns with what research shows.
Nutrition after pancreatic resection
ProveniIncluded in official guidelines, or approved by EMA or FDA
When the pancreas is partially or completely removed (pancreaticoduodenectomy), food processing changes. The body absorbs fats and nutrients less well, and blood sugar becomes harder to regulate. Research from 2026 shows that early nutritional support after such a procedure, combined with exercise according to a set program, promotes recovery.
The use of replacement enzymes (because the pancreas produces fewer or no digestive enzymes) is also part of this recovery process. Research from 2026 shows that when a dietitian closely monitors and adjusts this enzyme use, nutritional status and inflammation markers in the blood improve.
This requires guidance: a dietitian can help find the right amounts and timing.
Mediterranean dietary pattern
ResearchediPositive results in clinical studies, not yet standard treatment
The Mediterranean pattern (lots of vegetables, fruit, fish, oil, limited red meat and dairy) is being researched for many cancer types. For pancreatic cancer, the specific benefit has not yet been clearly demonstrated, but some studies suggest that certain elements of it (especially limiting red meat and using plant-based oils) may be beneficial.
Alcohol and tobacco
Advised againstiProven ineffective or harmful, or dangerous in combination with your treatment
Alcohol and tobacco are established as risk factors for pancreatic cancer and also increase the risk of other cancer types. If you have pancreatic cancer, avoiding them is recommended — not only for prevention, but also because they put extra strain on the pancreas and can hinder treatment. Alcohol can also interact with chemotherapy.
Nutrition and immune function
ResearchediPositive results in clinical studies, not yet standard treatment
Research from 2026 shows that certain nutritional markers and inflammation levels in the blood are associated with outcomes in pancreatic cancer. This suggests that nutrition not only provides energy, but also influences immune response and inflammation balance. This research is still mainly descriptive (looking at correlations); which dietary choices directly improve this is still not entirely clear.
Nutritional supplements and nutritional drinks
ResearchediPositive results in clinical studies, not yet standard treatment
For patients who have difficulty eating (due to side effects, nausea, or weakness), nutritional supplements may be necessary. Research shows that early administration of them (especially after surgery) supports recovery. However, this requires coordination with the treatment team: what, how much, and when depends on the situation.
Periodic fasting and intermittent fasting
ExperimentaliOngoing in study setting, outcome still unknown
Laboratory studies suggest that certain forms of dietary restriction can make cancer cells more sensitive to treatment. However, this has not yet been demonstrated in large clinical trials in pancreatic cancer. This pattern requires caution: not all patients can tolerate it, and without medical supervision, nutritional deficiencies can develop.
---
**Important:** nutritional choices for pancreatic cancer are individualized. They depend on your phase of illness (diagnosis, treatment, recovery, advanced phase), your treatments, whether your pancreas has been (partially) removed, and your personal situation. A dietitian with experience in oncology can help you make choices that align with what research shows and what your body needs. Always discuss nutritional changes with your treatment team before implementing them.
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._