Gastrointestinal Disorders in Children – Symptoms and Diet

Rotaviral gastroenteritis, commonly referred to as "stomach flu," is clinically defined by accelerated intestinal transit, resulting in watery diarrhea due to impaired fluid absorption within the small intestine. The unabsorbed water, which under normal physiological conditions would be reclaimed by the colon and reintegrated into metabolic processes, is instead expelled, leading to a dual deficiency: not only a reduction in total body water but also a critical depletion of essential electrolytes—sodium, potassium, and chloride. The proportion of water in the human body exhibits a marked age-dependent decline: in neonates, it constitutes approximately 74% of total body weight (with potential peaks up to 84%), in one-year-old infants around 60%, and in adult women roughly 50%. Water fulfills indispensable physiological roles—serving as a solvent for electrolytes vital to maintaining osmotic balance, providing the medium for biochemical reactions, facilitating the transport of nutrients and metabolic byproducts, and comprising a significant component of blood, plasma, and tissues such as the brain, myocardium, intestines, and kidneys. A mere 2–3% reduction in total body water manifests as impaired cognition and physical weakness, whereas a 10% loss can prove fatal. Consequently, protracted diarrhea—particularly in infants and young children—poses a severe threat to survival due to progressive dehydration and electrolyte imbalances.

Identifying intestinal flu in a child necessitates methodical observation of their health condition. The predominant and defining symptom is watery diarrhea, with the acute episode typically lasting between three and a maximum of ten days. Concerning scenarios include when the child passes more than three loose stools within a 24-hour period or when the feces contain alarming admixtures such as blood, mucous secretions, or purulent fragments. Equally critical is continuous monitoring of the child’s overall well-being and precise assessment of their fluid and electrolyte balance, as rapidly progressing dehydration can result in severe health complications.

Mild to moderate dehydration in children can be effectively managed at home through the implementation of a specialized hydrating diet that is both nutritious and easily digestible. The cornerstone of treatment involves the systematic replenishment of bodily fluids; however, in cases of severe dehydration, immediate hospitalization is imperative to correct electrolyte and acid-base imbalances via intravenous glucose solutions enriched with essential micro- and macronutrients. For home-based fluid therapy, precisely formulated preparations are recommended, such as an oral rehydration solution (0.9 g sodium chloride and 4 g sucrose per 250 ml boiled water), a rice gruel prepared at a ratio of 3 g rice to 100 ml water, or a carrot-based broth (500 g organic carrots per liter of water with a minimal amount of salt). These fluids should be administered in small, frequent doses of 50–100 ml every 15–30 minutes over approximately four hours, followed by the gradual reintroduction of solid foods that are gentle on the digestive system. The diet should consist primarily of steamed or water-boiled dishes with a soft texture, prioritizing fruits and vegetables rich in pectin—a soluble fiber that slows intestinal transit and supports enterocyte regeneration. Key pectin sources include apples, bananas, oatmeal, and lentils. This article also provides a sample meal plan for post-infant children experiencing acute diarrhea, featuring nutrient-dense, gut-friendly meals.