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Food intolerances

What are Food Intolerances?

Food intolerances occur when the body has difficulty digesting certain foods, often leading to digestive symptoms as well as wider physical and psychological effects. Unlike food allergies, which involve an immune response, intolerances are usually related to how the body processes specific ingredients such as lactose, gluten or certain additives.

It is normal to occasionally feel discomfort after eating, particularly with rich or unfamiliar foods. However, when symptoms are frequent, persistent or begin to affect daily life, it may suggest an underlying intolerance.

In our clinic, we often see that food intolerances can have a broader impact beyond digestion. They may affect energy levels, concentration, mood and overall wellbeing. The relationship between diet and mental health is complex, and symptoms are often influenced by multiple factors, including stress, gut health and lifestyle.

Food intolerances are not always straightforward to identify, and there is rarely a single cause. With the right support, it is possible to better understand your body’s responses and make informed, sustainable changes.

Signs & Symptoms of Food Intolerances

Food intolerances can present in a variety of ways, including:

  • Bloating or abdominal discomfort after eating
  • Excessive gas or changes in digestion
  • Diarrhoea or constipation
  • Nausea or feeling unsettled after certain foods
  • Fatigue or low energy levels
  • Headaches or “brain fog”
  • Difficulty concentrating
  • Changes in mood, including irritability or low mood
  • Skin issues such as rashes or flare-ups
  • Symptoms that improve when certain foods are reduced or avoided

Private Treatment for Food Intolerances in London and the UK

At London Psychiatry Clinic, we take a holistic and evidence-based approach to food intolerances, recognising the close connection between nutrition, gut health and mental wellbeing.

In our clinic, we focus on understanding your individual symptoms, dietary patterns and lifestyle. We aim to provide clear, practical guidance that helps you identify potential triggers and improve your overall wellbeing, without unnecessary restriction.

Depending on your needs, support may include:

  • Psychoeducation to understand food intolerances and the gut–brain connection
  • Guidance on identifying and managing potential trigger foods
  • Support with balanced, sustainable eating patterns
  • Nutritional and lifestyle recommendations tailored to your needs
  • Talking therapy to address stress, anxiety or food-related concerns
  • Access to specialised approaches such as KetoMind where appropriate

Our aim is to help you feel more comfortable, informed and confident in your relationship with food. As well as appointments in our London clinic, we also offer online appointments, so you can access care from the comfort of your home.

Find the best kind of treatment for food intolerances. 

If you are experiencing ongoing symptoms related to food, we are here to help. Speak with us today to explore personalised support options.

Specialists in Food intolerances

Sascha Landskron

Sascha Landskron

Specialist Dietitian

I’m Sascha Landskron, a Specialist Dietitian with over ​​20 years of clinical experience. I’ve helped over 20,000 patients of all ages, from infants to the elderly.

View specialist profile

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We can arrange a brief courtesy call directly with one of our psychiatrists/therapists/specialists so you can judge for yourself if you feel comfortable talking to them.