One of the most common questions I hear in clinic is, “What can I do to help my digestion during treatment?”
It’s no surprise — cancer treatment can be incredibly tough on the gut. You might notice changes in appetite, reflux, constipation, diarrhoea, bloating, or just a general sense that your digestion isn’t working the way it usually does.
The good news is that there are gentle, practical things you can do to feel more comfortable and support your recovery. You don’t need a perfect diet or a long list of supplements — just small steps that nourish your gut and help it do its job.
Let’s walk through a few that make a real difference.
1. Start With a Gut-Friendly Way of Eating
During treatment, your gut responds best to foods that are nourishing but easy to digest. One of the most supportive eating patterns is the Mediterranean diet — and it’s less complicated than it sounds.
Think of it as building your meals around:
- Plenty of colourful vegetables and fruit
- Whole grains like oats, barley or brown rice
- Legumes such as lentils, chickpeas and beans
- Extra virgin olive oil (your daily healthy-fat hero)
- Nuts, seeds and herbs for added flavour and fibre
- Fish and seafood a few times a week
- Smaller amounts of poultry, dairy and eggs
- Very little red meat, processed food or excess sugar
This way of eating feeds your good gut bacteria, supports regular bowel habits, and helps manage inflammation — all incredibly important during treatment.
If your appetite is low or your gut feels sensitive, try softer textures: blended soups, slow-cooked vegetables or warm porridge. Even one or two Mediterranean-style choices a day add up.
2. Feed Your Healthy Gut Bacteria
Your microbiome — the community of bacteria living in your digestive tract — is heavily influenced by treatment. Giving it a little love can help with regularity, energy and even immune support.
Easy food-based prebiotics
Prebiotics are fibres that “feed” your good gut bugs. Some of the most helpful include:
- Inulin – found in onions, leeks, garlic, artichokes
- PHGG (Partially Hydrolysed Guar Gum) – one of the gentlest fibres for bloating or constipation
- GOS – great for boosting bifidobacteria and calming inflammation
- FOS – naturally found in fruit, veg and honey
These can come from food and there is more information in this blog What are the best vegetables for feeding your gut ?. The key is: start low, go slow.
Everyday foods that help
- Cooked and cooled potatoes or rice (a great source of resistant starch)
- Yoghurt or kefir (if tolerated)
- Bananas, berries, citrus
- Almonds, pistachios and ground flaxseed
Even adding one prebiotic food per day can gradually improve gut comfort.
3. Gentle Homeopathics for Common Symptoms
Many clients find homeopathics helpful alongside their treatment plan — especially when symptoms fluctuate.
Here are a few commonly used options:
- Nux vomica – feeling like you have over-indulged (headache and mild nausea), constipated or never feeling like you are completely empty.
- Arsenicum album – nausea or vomiting with diarrhoea.
- Ipecac – persistent nausea that doesn’t improve after vomiting
- Colocynthis – bowel pain better for bending over or putting pressure on the affected area.
- Bryonia – constipation with dryness or pain on movement
As always, check in if you’re unsure what’s right for you. You will often need to dose more frequently than you would expect during treatment.
4. Gentle Lifestyle Habits That Support Digestion
None of these require big changes — just small actions done consistently:
- Eat smaller meals more often
- Sip water throughout the day
- Keep meals at similar times to support natural rhythms
- Try a short walk or gentle stretching after meals
- Avoid highly processed foods and artificial sweeteners when possible
These little habits can make a noticeable difference in comfort and regularity.
5. Supporting Your Gut During Recovery
Once active treatment finishes, your gut may need time to settle. This is where rebuilding becomes important. Continue with:
- Mediterranean-style foods
- Prebiotics (food first, then supplements if needed)
- Good hydration
- Gentle movement
- A slow reintroduction of foods if your digestion is still sensitive
Your gut has an incredible ability to repair — and these steps help guide it back to balance.
A Final Thought
Caring for your gut during cancer treatment isn’t about getting everything right — it’s about choosing small, supportive habits that help you feel a little better each day. With nourishing foods, gentle prebiotics, targeted homeopathics and a Mediterranean-style approach, you can give your digestive system the support it needs to cope with treatment and recover well.
In clinic I usually recommend a comprehensive digestive stool analysis as a good way to get information on how well your gut is functioning and to direct treatment to improve your health. Currently I refer people to Microba for that testing. The testing is simple and can be delivered directly to you at home.
If you need more support book in for an online or in person consultation at Elemental Health .Christine in in clinic on Tuesdays and Wednesdays.
