Your Health Starts At Home
Understanding and Managing Food Intolerance
At Check My Wellbeing, recognising and managing the symptoms of food intolerance is a vital step toward living a healthier, more energised life. Whether you’re dealing with lactose intolerance, sensitivity to alcohol, or reacting to specific ingredients, early detection can help you take control of your wellbeing.
These symptoms can be highly disruptive, affecting everyday activities such as eating out, travelling, or even maintaining your usual routine. But with the right insights and a few simple strategies, you can make impactful changes to how you feel.
What’s the Difference Between Food Allergy, Intolerance, and Sensitivity?
Understanding the terminology is key. Food allergies, intolerances, and sensitivities are often confused, yet they involve very different processes and symptoms.
A food allergy is an immediate immune response. When your body mistakes a food protein as a threat, it releases chemicals like histamine, which can cause swelling, hives, nausea, and, in severe cases, anaphylaxis. These reactions tend to happen quickly, often within minutes of consuming the food.
Managing a Food Intolerance
Food intolerances, on the other hand, are usually digestive in nature. They often occur when your body lacks the enzymes needed to break down certain foods, such as lactose in dairy. Symptoms develop more slowly and may include bloating, gas, or stomach discomfort.
Food sensitivities involve a delayed immune reaction, which isn’t life-threatening but can lead to a variety of symptoms such as fatigue, headaches, or brain fog. Unlike food allergies, these reactions can take hours to develop, making them harder to identify and trace.
Common Signs of Food Intolerance
The symptoms of food intolerance vary depending on the trigger and whether the issue is related to digestion or the immune system. Common symptoms include:
- Bloating or gas
- Diarrhoea or constipation
- Stomach discomfort or cramps
- Nausea
- Brain fog
- Fatigue
- Headaches or migraines
- Joint pain or inflammation
- Skin rashes or eczema
- Mood swings or irritability
- Respiratory issues
For example, those with lactose intolerance often experience digestive issues due to the fermentation of undigested lactose in the gut. People with alcohol intolerance may develop headaches, flushing, or nausea due to a build-up of by-products their body cannot process effectively.
Managing Food Intolerance: What You Can Do
Start with a Sensitivity Test
At Check My Wellbeing, we recommend starting your journey with a home-to-lab sensitivity test. Our tests analyse your body’s response to a wide range of foods and environmental substances, helping you identify potential triggers behind symptoms like bloating, fatigue, or headaches.
Try an Elimination Diet
Once you have a better understanding of your sensitivities, try eliminating specific foods and then reintroducing them one at a time. This helps confirm whether a food is truly causing your symptoms. An elimination diet is a valuable tool for pinpointing hard-to-detect intolerances and sensitivities.
Avoid Known Triggers – or Use Supportive Supplements
When it comes to enzyme-related intolerances, such as lactose intolerance, avoiding the trigger food is often the most effective solution. However, digestive enzyme supplements (like lactase) may allow for occasional flexibility. Always read food labels carefully. Some ingredients can appear in unexpected products.
Address Underlying Factors
Other issues may worsen some food intolerance symptoms. Supporting your overall wellbeing can help manage them more effectively:
- Reduce stress: Stress affects digestion. Incorporate mindfulness, gentle exercise, and good sleep habits into your routine.
- Support gut health: Choose a fibre-rich, nutrient-dense diet with probiotics, and cut back on processed foods and sweeteners.
- Avoid food additives: Artificial preservatives, colours, and flavourings can trigger symptoms. Choose whole, natural foods when possible.
- Stay hydrated: Water supports digestion and overall gut function.
- Monitor overall health: Regular check-ups can help uncover other contributing factors, such as hormone imbalances or immune conditions.
Discover What’s Holding Back Your Health
At Check My Wellbeing, we help people across the UK and around the world better understand their health through advanced wellbeing testing. Our Individual Ultimate Test examines your body’s response to 975 food and non-food items, using a small hair sample for in-depth results.
You’ll receive detailed insights to help guide your next steps, whether that means adjusting your diet or working with a healthcare professional.
Feeling bloated, tired or foggy? Unsure what’s behind it all? Let’s find the answers together.



