Nutrition during treatment
Eating well when appetite and taste change
The short version
Treatment can change appetite, taste, and digestion in ways that vary widely from person to person. Small, practical adjustments — rather than a strict diet — are usually the most sustainable approach.
Appetite, taste, and digestion can all shift during treatment, and not in the same way for everyone. There's no single "cancer diet" — the most helpful approach is usually practical adjustments that keep you eating enough, rather than a strict regimen.
- Small, frequent meals can be easier to manage than three large ones
- Protein-rich snacks can help maintain strength during recovery
- Metallic or altered taste is common — some people find plastic utensils or citrus flavors help
- A registered dietitian familiar with oncology can offer more tailored guidance
Be cautious with unproven "cancer diets" or supplements claiming to cure or treat cancer — discuss any major dietary changes or supplements with your care team, since some can interact with treatment.
Questions you may want to ask
Can I be referred to an oncology dietitian?
Are there foods or supplements I should avoid during my treatment?