# Nutrition with gastric cancer
Energy needs and proteins after surgery
After gastric surgery, your body needs extra energy and building blocks to recover. Research shows that many patients struggle to meet their nutritional needs in the weeks following the procedure, especially because the stomach is smaller or partially removed.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Proteins are essential for wound healing and muscle tissue recovery after gastric surgery. This is one of the most important considerations in the first months after the operation.
Your nutritional needs may change during the healing process. Research suggests that monitoring your weight and nutritional status during the first months after the procedure can be useful to see how your body responds. This helps your care team and dietitian adjust your guidance.
Small, regular meals
Because the stomach can hold less food after treatment, most patients eat better in small portions spread throughout the day. This is usually discussed with you in the hospital, but it remains important to stick to it.
Eating in a rush or taking large bites can feel uncomfortable. Many patients find that they need to eat more slowly and chew well.
Nutrients to pay attention to
ProveniIncluded in official guidelines, or approved by EMA or FDA
After partial removal of the stomach, certain nutrients may be more difficult to absorb, especially vitamin B12 and iron. This is usually monitored through blood tests, and replacement therapy may be necessary.
Calcium and vitamin D are also relevant, because an adapted digestive system absorbs these less well. Your doctor will check this.
ResearchediPositive results in clinical studies, not yet standard treatment
Studies examine how weight changes in the period before and after surgery are associated with outcomes. Rapid weight loss before or shortly after the operation seems to require a cautious approach; your treatment team will pay close attention to this.
Food types and stomach contents
Some foods feel more comfortable than others. This is very personal, but many patients notice that:
- Moist food passes better than dry
- Alternating warm and cold food sometimes works better
- Small amounts of fatty food are tolerated better than large amounts
These are not strict rules, but rather guidelines that you and your dietitian can use to figure out what works for you.
Meat and food composition
ResearchediPositive results in clinical studies, not yet standard treatment
Much research has been conducted on the link between certain food types (such as red meat) and gastric cancer risk in the general population. This is relevant for prevention, but for patients who have already had gastric cancer, the primary focus is on getting adequate nutrition.
In the healing phase after treatment, it is more important that you absorb all your food than that you completely avoid certain types of food — unless these cause you discomfort or conflict with your treatment.
Food and medications
Some medications used for gastric cancer can affect your appetite or work better on a full or empty stomach. This is something you should always discuss with your pharmacist or doctor, especially for chemotherapy or targeted therapies.
ProveniIncluded in official guidelines, or approved by EMA or FDA
The timing and combination of food and certain medicines can affect their effectiveness. This is what your doctor and pharmacist will discuss with you in detail.
Malnutrition and supplemental nutrition
If you have difficulty getting enough calories and protein through regular food after surgery, nutritional drinks or tube feeding (nutrition via a tube) may be an option. This is used when normal eating proves insufficient.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Medical nutritional supplements can help fill nutritional gaps, especially in the first months after the operation.
Exercise and nutrition work together
Research suggests that nutrition and preparation for surgery (prehabilitation) work best together. Light exercise under supervision, combined with good nutrition, contributes to better recovery.
This is not an intensive training program, but rather the gradual building of strength and endurance in the weeks before and after surgery, under the guidance of your care team.
Keep monitoring
Your nutritional status will likely be checked regularly with blood tests and weight measurements. This helps your healthcare provider and dietitian intervene early if malnutrition threatens.
ProveniIncluded in official guidelines, or approved by EMA or FDA
Regular monitoring of nutritional status and adjustments to your diet plan lead to better healing outcomes after gastric surgery.
Practical tips
- **Work with your dietitian**: they can create a plan tailored to your situation
- **Keep track of what you eat and how you feel**: this helps identify patterns
- **Ask for alternatives**: if you can't tolerate something, there are other options
- **Be patient**: it takes weeks to months for your eating pattern to settle
---
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._