What should you drink when you have gastro?

Gastroenteritis , often referred to as " gastro ," is one of the most common infections in children. Characterized by inflammation of the digestive lining, this viral or bacterial infection can cause symptoms such as diarrhea , vomiting , and fever. When an individual, especially a child, is struck by gastroenteritis, it becomes essential to pay special attention to hydration. The risks of dehydration are increased, therefore, requiring wise choice of drink to maintain fluid balance. The risk of malnutrition should also not be overlooked, which is why it is important to adapt the diet. In this article, we will explore the best drink and food options when faced with gastroenteritis.
I. Risks of dehydration and drinks to avoid
The impact of gastroenteritis on water balance

When it comes to gastroenteritis, symptoms such as frequent bowel movements and intense vomiting can lead to a significant loss of water and mineral salts , or electrolytes , thus challenging the body's fluid balance. Diarrhea , in particular, is a common manifestation of this gastrointestinal infection, further exacerbating the likelihood of being dehydrated. Repeated fluid loss leads to rapid elimination of water, as does vomiting, which also contributes to significant fluid loss.
The consequences of dehydration
Dehydration , resulting from excessive water loss in the body, causes a series of health consequences. The water that is a vital element participating in countless physiological processes, its deficiency can lead to side effects.
The effects of dehydration are numerous, ranging from mild symptoms such as thirst and dry mouth to more serious complications . A water imbalance can reduce concentration, mental and physical performance, and can also lead to increased fatigue. Vital organs such as the kidneys can also be put under strain during this process.

Carbonated and caffeinated drinks to avoid
When dealing with gastroenteritis , it is imperative to pay special attention to the drinks we consume . Therefore, in these situations, it is necessary to avoid carbonated drinks . The main reason lies in the increased threat of fluid and electrolyte loss, a critical scenario during gastroenteritis. Carbonated drinks can then cause abdominal distension and aggravate the symptoms of bloating and nausea and can be harmful to the already irritated digestive lining. Caffeinated drinks, on the other hand, have a laxative effect that can increase the likelihood of diarrhea. Therefore, avoiding them minimizes the likelihood of complications and promotes a faster and more effective recovery.
II. Gastro: consequences in children
Gastroenteritis, as mentioned earlier, leads to fluid and nutrient loss due to frequent bowel movements and vomiting, which will lead to dehydration and malnutrition if not treated properly. In children, who are still developing, the risks are even greater.
Malnutrition in children manifests itself through visible weight loss and a deficiency in essential nutrients. A weight loss of 2 kg in one month can be an alarming sign, and gastroenteritis can worsen this situation. Therefore, it is crucial to act quickly to prevent these complications and preserve the child's growth.
Furthermore, it is crucial to note that significant fluid loss followed by insufficient rehydration can alleviate the sensation of thirst and dry mouth without actually addressing the dehydration problem. Therefore, it is essential to ensure adequate hydration to compensate for losses.
III. What food should you choose?
Gastroenteritis causes a loss of nutrients that can lead to malnutrition . To avoid this , it is advisable to have a balanced and varied diet during the period, then for three to four days with a gradual return to normal.
There is no particularly effective diet, but there are foods regularly recommended by the Health Insurance, for example. These include anti-diarrheal foods, such as:
- rice,
- cooked carrots,
- bananas,
- quince jelly or compote,
- or even bread.
In addition, it is not recommended to consume foods that are difficult to digest or laxative, such as green vegetables and acidic fruits.
IV. Drinks to favor
The benefits of still water

During gastroenteritis, it is necessary to prioritize still water and drink about 2 liters per day to stay properly hydrated. Indeed, still water, devoid of gas, allows for easier absorption, without attacking the digestive system, which is weakened during this period. It is a gentle option to maintain hydration and compensate for losses related to symptoms such as diarrhea and vomiting. However, it is also important to maintain a sufficient sugar and salt intake because a deficiency of these elements can jeopardize the body's hydration.
ORS to restore electrolytes
ORS are used in infants and young children to prevent severe dryness due to diarrhea. They are formulated with electrolytes such as sodium, potassium, or chloride, combined with sugar such as glucose, in proportions equivalent to the losses caused by diarrhea. The sugar will provide energy, reduce vomiting, and facilitate the absorption of water by the intestine. In this way, they are used to concoct a solution to facilitate rehydration .
It is important to note that before the age of eighteen months, all other beverages (natural or sweetened water, sodas, etc.) are inappropriate in cases of gastroenteritis.
Hydratis, a suitable solution

Hydratis lozenges are based on the principle of Oral Rehydration Solutions (ORS). They are composed of electrolytes such as magnesium, potassium, and chloride, and promote optimal water absorption with essential electrolytes for the body. Hydratis is recommended for the prevention of dehydration, in cases of vomiting and diarrhea. Note that Hydratis contains zinc, and according to the WHO, this is an element that reduces the duration of diarrheal episodes by 25% and the volume of stools by 30%.
V. Tips for easy hydration
Split the shots
In case of gastroenteritis , it is essential to maintain adequate fluid intake. For this, a specially formulated oral rehydration solution may be necessary to provide essential electrolytes and restore the body's fluid balance. It is then recommended to drink regularly, in small amounts , every hour, to promote rapid recovery . This approach allows for more efficient absorption of fluids by the body, thus avoiding the risk of dehydration. With the frequent nausea associated with gastroenteritis, drinking small amounts of water at regular intervals will prevent discomfort!
Vary the flavors to make hydration more appealing
To make hydrating less stressful, you can definitely try different flavors of hydrating drinks . Choosing liquids with natural and varied flavors can make this experience more enjoyable and encourage more regular water consumption. Hydratis offers a wide range of flavors. From shades of wild berries to watermelon flavors, including a lemon and elderflower blend, this gives you the opportunity to add a touch of flavor to your water!
VI. What should you remember about diet and hydration during gastroenteritis?
Symptoms of gastroenteritis can cause a significant loss of fluids, minerals and nutrients, thus jeopardizing metabolism.
Maintaining an appropriate water and nutritional intake is therefore essential to prevent dehydration and malnutrition, and thus promote rapid recovery.
A varied and balanced diet will already be a good step towards recovery. For hydration, it's important to consider splitting up your intake. With this in mind, Hydratis solutions are an ideal option.
Bibliography:
Acute viral gastroenteritis – Public Health France
Childhood Gastroenteritis: What to Do and When to Seek Care? | ameli.fr | Insured
Treatments for childhood diarrhea - VIDAL
Key facts about diarrheal diseases
Key facts about diarrheal diseases