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What is best to eat when having chemo? Your Comprehensive Nutrition Guide

5 min read

According to the National Cancer Institute, up to 70% of chemotherapy patients experience nutrition-related side effects such as nausea, appetite loss, and fatigue. Knowing what is best to eat when having chemo is crucial for maintaining strength, managing symptoms, and supporting your body's recovery during treatment.

Quick Summary

Navigating diet during chemotherapy is challenging due to various side effects. Strategies focus on small, frequent meals, nutrient-dense foods, adequate hydration, and managing specific symptoms like nausea, mouth sores, and taste changes with appropriate food choices.

Key Points

  • Eat Small and Frequent Meals: Instead of large meals, opt for 5-6 smaller, more frequent meals and snacks to manage nausea and maintain energy.

  • Prioritize High-Protein Foods: Focus on lean protein sources like fish, eggs, and legumes to help your body repair tissues and maintain muscle mass.

  • Stay Well-Hydrated: Sip on fluids like water, herbal tea, or clear broths throughout the day to prevent dehydration, especially when experiencing vomiting or diarrhea.

  • Choose Bland, Mild Foods for Nausea: Stick to easy-to-digest foods with less odor, such as crackers, toast, and cold snacks, to minimize stomach upset.

  • Soothe Mouth Sores with Soft Foods: Select soft, cool, and non-irritating foods like smoothies, yogurt, and mashed potatoes to avoid discomfort.

  • Adapt to Taste Changes: If your taste is altered, experiment with different flavors, marinades, and seasonings, or try tart options to make food more appealing.

  • Keep Easy Snacks on Hand: Combat fatigue by stocking up on nutrient-dense, no-prep snacks like nuts, yogurt, and pre-cut fruit.

In This Article

Why Nutrition Matters During Chemotherapy

Proper nutrition during chemotherapy is more than just a preference; it's a vital part of your treatment plan. A well-balanced diet helps your body maintain energy, rebuild damaged tissue, and fight off infection. Chemotherapy can impact your appetite and ability to eat by causing side effects like nausea, fatigue, and changes in taste. By understanding how to adapt your eating habits, you can combat these issues and ensure you get the nourishment you need.

General Eating Strategies

  • Eat small, frequent meals: Instead of three large meals, aim for five or six smaller meals or snacks throughout the day. This can be less overwhelming for a sensitive stomach and helps maintain consistent energy levels.
  • Prioritize protein: Protein is essential for tissue repair and preserving muscle mass, which can be affected by treatment. Aim for 1.0 to 1.5 grams of protein per kilogram of body weight daily. Sources include lean meats, fish, eggs, dairy, nuts, and legumes.
  • Stay hydrated: Dehydration is a risk, especially with nausea or diarrhea. Sip fluids throughout the day. Aim for at least eight 8-ounce glasses of caffeine-free fluid daily, more if you are experiencing vomiting or diarrhea.
  • Choose easy-to-digest foods: Bland, low-fat foods are often better tolerated. Examples include crackers, toast, rice, bananas, and plain yogurt.

Managing Common Side Effects with Food

Nausea and Vomiting

Nausea is one of the most common and difficult side effects. The key is to avoid an empty or overly full stomach.

  • Bland foods: Crackers, toast, rice, and clear broths are often well-tolerated.
  • Cold foods: Foods with less odor, like popsicles, gelatin, chilled soups, or cold sandwiches, can be less triggering than hot, aromatic meals.
  • Ginger: Ginger has long been used to ease nausea. Try ginger tea, ginger ale, or ginger biscuits.
  • Avoid: Greasy, fried, spicy, or very sweet foods can worsen nausea.

Mouth Sores and Swallowing Difficulties

For painful mouth sores or a sore throat, focus on soft, moist foods.

  • Soft foods: Mashed potatoes, scrambled eggs, smoothies, yogurt, and soft fruits like bananas and peaches are excellent choices.
  • Cool foods: Ice cream, sherbet, and chilled soups can be soothing.
  • Avoid: Acidic (citrus), spicy, salty, or coarse foods that can irritate sensitive tissues.

Altered Taste and Smell

Chemotherapy can change how things taste and smell, making food unappealing. This side effect often resolves after treatment, but in the meantime, adapting your diet can help.

  • Experiment with flavors: If meat tastes metallic, try alternative protein sources like beans, eggs, or fish. Use strong marinades or spices like rosemary, mint, or oregano to enhance flavor.
  • Tart foods: Some people find tart flavors, like lemonade or pomegranate juice, more palatable during this time.
  • Stay away from strong odors: Opt for cooler foods, which tend to have less smell, or ask someone else to cook for you.

Fatigue

Fatigue can make preparing a full meal feel impossible. Focus on easy, nutrient-dense options.

  • Keep snacks handy: Nuts, trail mix, yogurt, and cheese sticks require no preparation and provide a quick energy boost.
  • Smoothies: A high-calorie, high-protein smoothie with protein powder, fruit, and yogurt can be a complete meal in a glass.
  • Meal prep: Cook extra portions on good days so you have ready-to-eat meals on low-energy days.

Sample Meal Plan: Managing Side Effects

Meal Standard Meal Plan Chemo-Friendly Modification (Side Effect Management)
Breakfast Scrambled eggs with bacon Scrambled eggs with a side of toast and applesauce (For nausea, mouth sores)
Mid-Morning Snack Coffee and a pastry Vanilla yogurt with mashed banana or a protein smoothie (For nausea, hydration)
Lunch Spicy chicken salad Plain baked chicken breast with mashed potatoes and cooked carrots (For mouth sores, sensitive taste)
Mid-Afternoon Snack Chips and dip Crackers, pretzels, or a small handful of almonds (For nausea, low appetite)
Dinner Steak with roasted vegetables Baked salmon with steamed rice and zucchini (For metallic taste, easy digestion)
Evening Snack Ice cream sundae Low-fat ice cream, sherbet, or plain gelatin (For mouth sores, nausea)

Conclusion

What is best to eat when having chemo isn't a one-size-fits-all answer, but rather a flexible approach focused on managing your specific side effects. The priority is to maintain your strength, stay hydrated, and ensure your body has the energy it needs to fight. By focusing on small, frequent meals, prioritizing protein, and making strategic food choices based on your symptoms, you can significantly improve your quality of life during treatment. Always remember to communicate with your doctor or a registered dietitian who specializes in oncology, as they can provide personalized guidance and nutritional advice. For more detailed nutritional information, consult the resources provided by the National Cancer Institute.

Authoritative Outbound Link

National Cancer Institute: Nutrition in Cancer Care

Frequently Asked Questions

Question: How can I meet my protein needs when I have no appetite? Answer: Focus on small, high-protein snacks like yogurt, cheese, or hard-boiled eggs. Liquid nutrition supplements like Ensure or Boost, or homemade protein smoothies, can also help you get calories and protein without feeling overly full.

Question: Are there any foods I should completely avoid during chemo? Answer: While you should avoid specific foods based on your side effects (e.g., spicy foods for mouth sores), it's important to be aware of food safety. Your immune system may be compromised, so wash produce thoroughly, cook meats completely, and avoid unpasteurized dairy and raw fish.

Question: What should I drink to stay hydrated if water tastes bad? Answer: If water has an unpleasant taste, try flavoring it with lemon or cucumber slices. Other good options include sports drinks with electrolytes, clear fruit juices (apple, grape), and herbal teas like ginger or peppermint. Ice chips or fruit popsicles also contribute to hydration.

Question: What if I have both constipation and diarrhea during treatment? Answer: Side effects can vary. For constipation, gradually increase your fiber intake with whole grains and fruits, and drink plenty of fluids. For diarrhea, stick to a low-fiber, bland diet (like the BRAT diet: bananas, rice, applesauce, toast) and focus on rehydration.

Question: Is it okay to eat comfort foods during chemo? Answer: Yes, it can be beneficial. Comfort foods like macaroni and cheese, mashed potatoes, or chicken noodle soup can provide needed calories and are often easier to digest. The goal is to eat whatever you can tolerate to maintain weight and energy.

Question: How do I know if I'm not getting enough nutrients? Answer: Weight loss can be a sign of inadequate nutrition. Weigh yourself regularly. Other signs can include fatigue, weakness, and loss of muscle mass. It's crucial to discuss any concerns with your doctor or dietitian.

Question: When should I contact my doctor about my eating problems? Answer: You should contact your healthcare provider if you experience significant weight loss, have persistent vomiting that prevents you from keeping fluids down, develop severe mouth sores, or are unable to eat anything for more than two days.

Frequently Asked Questions

Focus on small, high-protein snacks like yogurt, cheese, or hard-boiled eggs. Liquid nutrition supplements like Ensure or Boost, or homemade protein smoothies, can also help you get calories and protein without feeling overly full.

While you should avoid specific foods based on your side effects (e.g., spicy foods for mouth sores), it's important to be aware of food safety. Your immune system may be compromised, so wash produce thoroughly, cook meats completely, and avoid unpasteurized dairy and raw fish.

If water has an unpleasant taste, try flavoring it with lemon or cucumber slices. Other good options include sports drinks with electrolytes, clear fruit juices (apple, grape), and herbal teas like ginger or peppermint. Ice chips or fruit popsicles also contribute to hydration.

Side effects can vary. For constipation, gradually increase your fiber intake with whole grains and fruits, and drink plenty of fluids. For diarrhea, stick to a low-fiber, bland diet (like the BRAT diet: bananas, rice, applesauce, toast) and focus on rehydration.

Yes, it can be beneficial. Comfort foods like macaroni and cheese, mashed potatoes, or chicken noodle soup can provide needed calories and are often easier to digest. The goal is to eat whatever you can tolerate to maintain weight and energy.

Weight loss can be a sign of inadequate nutrition. Weigh yourself regularly. Other signs can include fatigue, weakness, and loss of muscle mass. It's crucial to discuss any concerns with your doctor or dietitian.

You should contact your healthcare provider if you experience significant weight loss, have persistent vomiting that prevents you from keeping fluids down, develop severe mouth sores, or are unable to eat anything for more than two days.

While a balanced diet is always preferred, nutritional supplements like Boost or Ensure can be helpful if your appetite is poor or if you're not getting enough calories and protein. Always consult your healthcare provider or dietitian before starting any supplements.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.