Digestive Upset Explained: What Causes It and Can Supporting Your Gut Help Recovery?

Most of us have experienced an upset stomach at some point, but digestive upset can be far more unpleasant than a simple digestive upset. While it usually improves within a few days, many people are surprised to learn that it may temporarily affect the balance of bacteria in the gut.

From family barbecues to restaurant meals and holidays abroad, digestive upset can happen when we least expect it. Although most healthy adults recover without complications, understanding what causes digestive upset and how to support your digestive health afterwards can help you get back to feeling your best.

What is digestive upset?

Digestive upset is a temporary digestive disturbance that can happen after eating food or drinking water that does not agree with you.

Common causes include:

• Campylobacter

• Salmonella

• Certain strains of Escherichia coli (E. coli)

• Norovirus

• Listeria

• Clostridium perfringens

Digestive upset can occur during food production, preparation, cooking or storage, particularly if food hygiene practices are not followed.

What are the symptoms?

Symptoms usually begin within a few hours to several days after eating contaminated food, depending on the cause.

Common symptoms include:

• Loose stools

• Vomiting

• Stomach cramps

• Nausea

• Fever

• Loss of appetite

• Feeling generally unwell

Most people recover within a few days, although recovery can take longer depending on the type of digestive upset and the individual's overall health.

Young children, older adults, pregnant women and people with weakened immune systems may be at greater risk of complications and should seek medical advice promptly if symptoms are severe or persistent.

Why hydration is so important

One of the biggest concerns during digestive upset is dehydration.

Vomiting and loose stools can cause the body to lose fluids and important electrolytes. Drinking water regularly and, where appropriate, using oral rehydration solutions can help replace these losses.

Medical advice should always be sought if dehydration becomes severe, symptoms persist, or there is blood in the stool, persistent vomiting or signs of serious illness.

What happens to your gut?

Your digestive system is home to trillions of beneficial microorganisms known as the gut microbiome.

During digestive upset, the upset itself, along with loose stools and vomiting, may temporarily disturb the balance of these microorganisms. In some cases, if antibiotics are prescribed for a specific bacterial issue, they may also affect beneficial bacteria as well as harmful ones.

For many people, the gut microbiome gradually returns to its usual balance over time as they recover.

Can probiotics help?

Researchers continue to study the role of probiotics in digestive health, including during recovery from digestive upset.

Some probiotic strains have been investigated for their ability to support the normal balance of gut bacteria after episodes of loose stools or following antibiotic use. However, not all probiotics are the same, and their effects can vary depending on the strains used.

It is important to note that probiotics are not a management approach for digestive upset and should never replace medical care where this is needed.

If symptoms are severe or prolonged, medical assessment is essential.

Where does Maxilin SuperProbiotic fit in?

Maxilin SuperProbiotic is a multi-strain probiotic supplement formulated to support digestive health as part of a balanced diet and healthy lifestyle.

Following an episode of digestive upset, some people choose to include a probiotic supplement in their daily routine as their digestive system returns to normal. Maintaining a healthy gut microbiome is an important part of overall digestive wellbeing.

However, Maxilin SuperProbiotic is not intended to support resilience during occasional digestive upset or support digestive balance. It should be considered a nutritional supplement that supports digestive health rather than a substitute for appropriate medical care.

If antibiotics have been prescribed, speak to your pharmacist or healthcare professional about the most appropriate way to take a probiotic alongside your medication.

Supporting your digestive system after illness

As your appetite returns, simple lifestyle measures may help support normal digestive function:

• Drink plenty of fluids.

• Introduce food gradually as tolerated.

• Choose a varied, balanced diet once recovered.

• Include fibre-rich foods as your digestion settles.

• Get adequate rest.

• Practise good food hygiene to reduce the risk of future digestive upset.

Recovery varies from person to person, so it's important to listen to your body and seek medical advice if symptoms do not improve.

Preventing digestive upset

Many cases of digestive upset can be reduced by following good food safety practices:

• Wash your hands before preparing food.

• Cook meat thoroughly.

• Keep raw and cooked foods separate.

• Refrigerate perishable foods promptly.

• Wash fruit and vegetables before eating.

• Check use-by dates and store food correctly.

Simple habits in the kitchen can significantly reduce the risk of digestive upset.

The bottom line

Digestive upset is a common illness that is usually caused by bacteria, viruses or other harmful microorganisms in contaminated food or drink. While most people recover within a few days, the upset can temporarily affect the digestive system and the balance of the gut microbiome.

Supporting your recovery with adequate hydration, rest and a balanced diet is important. Maxilin SuperProbiotic may help support digestive health as part of a healthy lifestyle, but it is not a management approach for digestive upset and should never replace medical advice or prescribed support.

Looking after your gut every day—through good nutrition, healthy habits and sensible food hygiene—can help support your overall digestive wellbeing.

This article is intended for general information only and should not be considered medical advice. If you have severe symptoms, signs of dehydration, blood in your stool, persistent vomiting or symptoms lasting longer than expected, seek advice from your GP, NHS 111 or another qualified healthcare professional.

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