When Food Causes Digestive Discomfort

What Is Food Intolerance?

Food intolerance happens when your body has difficulty breaking down and digesting certain foods or ingredients. While it is usually not life-threatening, it can cause highly uncomfortable symptoms.

How Is It Different from a Food Allergy?

• Food Intolerance: Affects your digestive system. Symptoms usually appear a few hours after eating and often depend on how much you eat. It does not involve the immune system.
• Food Allergy: Affects your immune system. Even a tiny speck of the food can trigger a sudden, severe, and potentially life-threatening reaction.

Common Triggers to Watch Out For

The most common culprit is lactose intolerance, where the body struggles to digest the natural sugar found in milk, cheese, and yoghurt. Other common triggers include:

• Gluten (found in wheat, rye, and barley)
• Caffeine (in coffee, tea, and fizzy drinks)
• Histamines & Sulphites (found in wine, aged cheeses, cider, and beer)
• MSG (a flavour enhancer found in some savoury foods and cured meats)
• Salicylates (found in certain fruits, vegetables, herbs, and spices).

Recognising the Symptoms

Symptoms can vary wildly from person to person. The most common digestive signs include:

• Tummy pain and cramping
• Bloating and excess wind (gas)
• Diarrhoea or constipation
• Nausea
• Other surprising symptoms: Some people also experience headaches, extreme tiredness, joint pain, or skin rashes.

How to Identify a Food Intolerance

If you think a certain food is making you sick, do not ignore it. Take these steps: Start a 3-Step Food Diary. Before your doctor's appointment, track your habits for two weeks.

Write down:

• What you ate and drank
• When you ate it
• What symptoms you felt and exactly how many hours after you started them.

Consult a Professional. Take your diary to your doctor. They may refer you to a registered dietitian or order specific medical tests for lactose intolerance. (Note: Doctors may use blood tests to rule out other medical conditions like Celiac disease, but avoid unverified commercial home-to-test kits).

How to Manage It Daily

• Reduce or Replace: You can manage most intolerances by reducing or completely avoiding the problem food. For example, if you are lactose intolerant, you can easily switch to lactose-free dairy options or take lactase enzyme supplements before eating dairy
• Cook Differently: You may find that certain cooking methods alter the food enough that your body can handle it.
• Protect Your Nutrition: Do not permanently cut out major food groups (like dairy or wheat) without consulting a dietitian, as this can leave you lacking vital vitamins and minerals.

When to Seek Urgent Emergency Care

Food intolerance never causes anaphylaxis. If you or someone else experiences swelling of the lips, tongue, or throat, severe difficulty breathing, or fainting after eating, call emergency services immediately. These are signs of a severe food allergy