Nutrition during Chemotherapy: What to Eat & What to Avoid 

by ONCOHEAL

Guidance from oncology nutrition specialists

When undergoing chemotherapy, your body needs more support: protein, healthy fats, hydration & immune-boosting nutrients. 

Key Nutrients to Focus On 

Protein: to maintain muscles & repair tissues. 

Carbs & healthy fats: for energy and to prevent weight loss. 

Fluids & micronutrients: to support immune system & recovery. 

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What to Eat: Top Food Choices 

– Oatmeal (easy to digest) – Eggs (soft texture + good protein) – Fish like salmon / mackerel (protein + omega-3) – Steamed vegetables / cooked green – Smoothies (when solid foods are challenging)

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Foods to minimise or avoid during chemo days: 

– Fatty, greasy, very spicy foods (can worsen nausea). – Raw or undercooked meats/fish, unwashed fruit & vegetables (risk of infection).  – Excess sugar/fad diets: no proven benefit and may weaken recovery. 

Side-effects like nausea, mouth sores or loss of taste? Try these: 

– Eat smaller meals more frequently (e.g., 5-6 instead of 3 large). – Choose soft/blended foods when mouth soreness or swallowing is difficult.  – Stay hydrated: broths, water, mild liquids. – Use milder flavours, avoid strong smells if taste changes.

Need help planning your diet during chemotherapy? Get expert nutritional guidance at OncoHeal

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