What causes diarrhoea? THESE five foods in your diet could be triggering an upset tummy

Posted on Oct 13 2017 - 3:06am by admin

Diarrhoea – where poo becomes loose and watery – is a sign that you have an upset stomach.

According to the NHS, it occurs when fluid can’t be absorbed from the contents of your bowel, or when extra fluid is secreted into your bowel.

While there are a number of causes, including having a virus, taking certain medications or suffering anxiety, diet can be a key cause.

A food allergy may cause a short-term bout of diarrhoea, while eating foods that trigger irritable bowel syndrome or coeliac disease could mean it is more long-term.

According to the NHS, you should see a doctor if it doesn’t go away, you feel sick and keep vomiting, you have no appetite and you’re losing weight, and if your poo is very dark and smelly.

Here are seven specific food types known to cause a problems.


Milk, cheese, yoghurt and other dairy products could cause diarrhoea if you’re lactose intolerant.

This is where your body is lacking the enzymes needed to break down the milk sugar, meaning it can’t be digested.

Lactose intolerance can develop later in life, but it tends to run in families.


That mug of coffee will not only kick-start your brain, but also stimulate your digestive system.

In some people this could prove a digestive trigger.

Spicy food

Seasonings like chilli peppers and curry blends are one of the most common dietary causes of diarrhoea.

This is because the spice can irritate the stomach lining while it’s being digested.


They may be good for you, but vegetables like broccoli and cauliflower are very fibrous.

The digestive tract sometimes doesn’t cope well with large amounts of fibre – particularly if it’s a big serving – and so diarrhoea may be caused.


Along with onions, garlic is high in insoluble fibre and contains juices that releases gases that can irritate the bowels when broken down.

Additionally, they’re both fructans – a type of complex carbohydrate that’s difficult to digest, and which can cause and upset tummy.

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