Why Am I Bloated Every Day? 12 Common Causes and What Actually Helps

This article is general information, not medical advice. If a symptom is new, getting worse or worrying you, talk to a doctor.

Feeling tight and swollen by the afternoon, with trousers that fit in the morning and dig in by evening, is one of the most common gut complaints. Most daily bloating is harmless and can be improved once you find what is driving it.

12 common causes of daily bloating

Food and eating habits

1. Gas-producing foods such as beans, lentils, onions, garlic, cabbage, broccoli and wheat. These contain fermentable carbs (FODMAPs) that gut bacteria turn into gas.
2. Eating fast or talking while eating, which makes you swallow air.
3. Fizzy drinks and chewing gum.
4. Sugar alcohols such as sorbitol and xylitol in “sugar-free” sweets and gum.
5. Large or fatty meals, which slow stomach emptying.
6. A sudden jump in fibre. Fibre is good for you, but adding a lot at once causes gas.

Digestive causes

1. Constipation: stool sitting in the bowel is one of the most common causes of bloating.
2. Irritable bowel syndrome (IBS): bloating, pain and changing bowel habits. It affects roughly one in ten people.
3. Lactose intolerance: bloating and wind after milk products.
4. Coeliac disease: an immune reaction to gluten that can cause bloating, diarrhoea, tiredness and anaemia. It needs a blood test while you are still eating gluten.
5. Small intestinal bacterial overgrowth (SIBO): too many bacteria in the small intestine.

Hormones

1. The menstrual cycle and perimenopause: many women bloat in the days before a period, and hormonal changes in midlife can make it more frequent.

How to find your trigger

Keep a simple food and symptom diary for two weeks: what you ate, when you bloated, your bowel movements and, for women, your cycle. Look for patterns before cutting out whole food groups.

What helps

• Eat slowly, chew well and sit down for meals.
• Take a 10 to 15 minute walk after meals, which helps move gas along.
• Drink enough water, especially if you are adding fibre.
• Treat constipation: increase fibre gradually, move daily and try a regular toilet routine.
• Cut fizzy drinks, gum and sugar-free sweets for two weeks.
• Try a short dairy-free test if milk seems to trigger symptoms.
• Peppermint oil capsules have reasonable evidence for easing IBS symptoms, including bloating. Avoid them if you have reflux.
• A low-FODMAP diet helps many people with IBS, but it is best done with a dietitian and is meant to be short-term, followed by reintroducing foods.

Do probiotics help bloating?

Some people with IBS find certain probiotics help with bloating, but results vary a lot by strain and person. Read do probiotics help with bloating? before you buy one.

When to see a doctor

• Bloating is new, persistent and happens most days for three weeks or more, especially if you are a woman over 50. Persistent bloating can occasionally be a sign of ovarian cancer, which is why doctors want to check it.
• You are losing weight without trying.
• There is blood in your stool, black stools or vomiting.
• You have a change in bowel habit lasting weeks, particularly over 50.
• You have severe pain, a fever or a swollen, hard abdomen.
• There is a family history of bowel cancer, ovarian cancer or coeliac disease.

Bottom line

Most daily bloating comes from food, swallowed air, constipation or IBS. A two-week diary plus simple changes, such as eating slowly, walking after meals and adding fibre gradually, fixes a lot of it. Persistent new bloating, particularly after 50, deserves a doctor’s check.