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Healthy diet for optimal digestive health

  • IBS
  • Food

Creation: 30 Jul 2026

Last update: 6 Aug 2026

Discover how a healthy diet supports your gut and mental well-being. Learn how poor diet disrupts nutrient absorption, explore digestion-friendly superfoods, understand the gut-brain link, and get practical tips on meals, hydration, and eating habits.

Often overlooked, digestion plays a crucial role in our overall health, impacting everything from nutrient absorption to mental health. In today’s fast-paced society, many of us struggle with maintaining a healthy diet, which can lead to many digestive issues. But fear not, with the right knowledge and tips, you can make small changes that may have a big impact on your digestion and in turn, your quality of life.

How unhealthy diets influence digestion 

It’s no secret that what we eat directly impacts our digestive health. But what exactly constitutes an unhealthy diet? Unhealthy diets are often high in processed foods, sugars, and unhealthy fats while being low in fibre, vitamins, and minerals. These types of diets can lead to a variety of consequences for our digestion.

Overall, maintaining a balanced diet rich in whole foods, fibre, vitamins, and minerals is crucial for optimal digestive health1.
 

These are the consequences of having an unhealthy diet 

A significant consequence of an unhealthy diet is poor nutrient quality. Diets high in processed and refined foods often fail to deliver the fibre, vitamins, and minerals that whole grains, vegetables, fruits, and beans provide, leaving the body short of the nutrients it needs to function well1.

Superfoods for digestion 

Now that we understand the impact of unhealthy diets on digestion, let’s explore how you can incorporate superfoods such as chia seeds, kefir, and leafy greens which are rich in essential nutrients and fibre. By making these nutrient-dense foods a regular part of your diet, you can support and maintain a healthy digestive system.

What are superfoods? 

Superfoods are nutrient-dense foods that provide a wide range of health benefits. Some examples include:

  • Kale
  • Quinoa
  • Chia seeds
  • Yoghurt

Superfoods and digestion

Incorporating superfoods into our diets has numerous benefits for digestion, such as:

  • Keeping our gut flora balanced by providing the necessary nutrients to support good bacteria growth2
  • Adding fibre to the diet through foods such as leafy greens, berries, whole grains, and legumes6
  • Supporting good gut bacteria through foods such as yoghurt7

By incorporating superfoods into our diets and following practical tips for a digestive-friendly diet, we can support and maintain optimal digestive health. Remember to strive for balance in your eating habits — filling your plate with plenty of vegetables and fruits, whole grains, and healthy protein — to keep your gut happy and healthy1.

 

Anxiety enters through the mouth: The importance of a healthy diet

The gut-brain connection

The gut-brain axis refers to the complex communication network that links your gut and brain. This bidirectional pathway involves intricate signaling mechanisms, including neural, hormonal, and immune communication. Essentially, your digestive system and central nervous system are in constant dialogue, influencing each other in numerous ways3.

Stress and digestion 

When you’re stressed or anxious, your body initiates a “fight or flight” response that can significantly interfere with digestion. Stress hormones like cortisol can slow down digestive processes, leading to symptoms such as bloating, gas, and abdominal discomfort. This connection works both ways — just as stress can cause digestive problems like a nervous or upset stomach, flare-ups of conditions like irritable bowel syndrome (IBS) may trigger anxiety or depression3.

Poor diet and mental health 

A healthy gut may be crucial for mental well-being as the gut produces neurotransmitters like serotonin and dopamine for regulating mood3. Maintaining a balanced gut microbiome may improve mental health, reduce anxiety, and elevate overall well-being. Maintaining balanced, regular meals can help stabilise blood sugar levels and prevent mood swings, ensuring a steady supply of essential nutrients for both body and brain4

 

Some practical tips for a digestive-friendly and healthy diet

Now that we understand the importance of incorporating superfoods into our diet, let’s explore some practical tips to make our diets more digestive-friendly.

When it comes to maintaining a healthy diet, balance is key. Our meals should include:

  • A good mix of macronutrients – carbohydrates, protein, and healthy fats
  • Plenty of fibre, vitamins, and minerals
  • Include foods rich in omega-3 fatty acids, such as oily fish (sardines, mackeral), nuts and seeds4.

This balance ensures that we are providing our body with the necessary nutrients to support digestion.

Eating at regular intervals helps maintain a healthy digestive system. Our bodies thrive on routine, and having consistent meal times helps regulate our digestion by signalling when it’s time to digest food. Eating sporadically or skipping meals can cause disruptions in our digestive processes and lead to issues such as bloating and constipation.

Avoid large meals 

Another important tip for a digestive-friendly diet is to avoid eating large meals. Our digestive system can struggle to process a large amount of food at once, and eating large meals can cause cramping and diarrhoea. Eating smaller meals more often may help with these kinds of symptoms5.

Why staying hydrated matters

Staying hydrated is an important part of a healthy, digestive-friendly diet. The Healthy Eating Plate model includes water alongside healthy carbohydrates, vegetables, fruits, and protein as part of balanced, everyday eating1

 

How to create a digestive health plan 

Plan your meals and snacks to include nutrient-dense foods that promote digestive health, such as fruits, vegetables, whole grains, and lean proteins. Ensure regular meal times and avoid large meals to give your digestive system ample time to process what you've eaten. Include foods rich in fibre to support a healthy gut microbiome. Additionally, staying hydrated by drinking plenty of water throughout the day is good for optimal digestion. By carefully planning your diet and incorporating these practices, you can support both your digestive health and overall well-being.

Remember to listen to your body, make mindful choices when it comes to food, and prioritise nourishment for optimal digestive health. Let’s take care of our gut, and it will take care of us in return. So, let’s make superfoods a regular part of our diets and prioritise digestive health for a happier, healthier life.

Cheers to good digestion!

Buscopan® IBS Relief Coated Tablets are for medically confirmed IBS. It contains hyoscine butylbromide. Always read the label. MAT-XU-2602236 v01 June 2026.

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References

  1. Harvard T.H. Chan School of Public Health. Carbohydrates – The Nutrition Source. Available at: https://nutritionsource.hsph.harvard.edu/carbohydrates/. Updated April 2022. Accessed June 14, 2024.
  2. National Center for Complementary and Integrative Health. Probiotics: What You Need to Know. National Institutes of Health, U.S. Department of Health and Human Services. Available at: https://www.nccih.nih.gov/health/probiotics-what-you-need-to-know. Updated August 2019. Accessed June 14, 2024.
  3. Harvard Health Publishing. Probiotics May Help Boost Mood and Cognitive Function. Harvard Medical School. Available at: https://www.health.harvard.edu/mind-and-mood/probiotics-may-help-boost-mood-and-cognitive-function. Published March 22, 2023. Accessed June 19, 2026.
  4. Mind. Food and Mental Health. Available at: https://www.mind.org.uk/information-support/tips-for-everyday-living/food-and-mental-health/. Published March 2023. Accessed June 19, 2026.
  5. Harvard Health Publishing. Irritable Bowel Syndrome (IBS). Harvard Medical School. Available at: https://www.health.harvard.edu/diseases-and-conditions/irritable-bowel-syndrome-ibs-a-to-z. Updated October 10, 2024. Accessed June 19, 2026.
  6. Harvard T.H. Chan School of Public Health. Fibre – The Nutrition Source. Available at: https://nutritionsource.hsph.harvard.edu/carbohydrates/fiber/. Updated April 2022. Accessed June 14, 2024.
  7. McManus KD. 10 superfoods to boost a healthy diet. Harvard Health Publishing. Available at: https://www.health.harvard.edu/blog/10-superfoods-to-boost-a-healthy-diet-2018082914463. Published August 29, 2018. Updated October 3, 2022. Accessed June 25, 2026.