← All healthy eating suggestionsHealthy eating guide

Gut health & digestion

A varied, high-fiber diet feeds the helpful bacteria in your gut and keeps digestion regular. Most adults eat far less than the 25–30 g of fiber a day often recommended.

Enjoy more

  • Aim for 30 different plant foods a week: vegetables, fruit, grains, beans, nuts, seeds and herbs
  • Oats, wholegrain bread, brown rice
  • Beans and lentils
  • Fermented foods: yogurt, kefir, kimchi, miso, sauerkraut
  • Prebiotic foods: onions, garlic, leeks, bananas, asparagus
  • Plenty of water

Limit

  • Highly processed foods with little fiber
  • Large amounts of alcohol
  • Very fatty or fried meals if they upset your stomach

A sample day

BreakfastKefir or yogurt with oats, banana and mixed seeds
LunchLentil and vegetable soup with wholegrain bread
SnackA pear and a few almonds
DinnerMiso-glazed fish with brown rice, kimchi and stir-fried greens

Helpful tips

Check with your doctor

If you have IBS, Crohn's disease, coeliac disease or ongoing changes in bowel habits, see a doctor; some people need a specialist diet such as low-FODMAP.

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General guidance for adults, not medical advice.