Bloating and lack of appetite: what to know

Bloating may create early fullness, while nausea, pain or changes in digestion can reduce interest in food. Food intolerance, lactose intolerance, coeliac disease, irritable bowel syndrome, Helicobacter Pylori Infection and giardiasis can produce overlapping symptoms. The combination does not point to one condition, particularly without knowing how long it has lasted, whether stools changed, and whether weight or energy has fallen.

Take small, regular meals or nourishing snacks and sip fluids through the day. Eat slowly and choose foods that feel comfortable rather than forcing a large meal. Keep a record of appetite, bloating, bowel movements, fever, travel and possible food triggers. Avoid starting a gluten-free diet before discussing coeliac testing, because this can affect the accuracy of assessment. Nutrition counselling can help protect intake when food choices become difficult.

Arrange a review if reduced appetite continues, bloating keeps returning, or eating becomes difficult. Seek urgent care for severe or rapidly worsening pain, repeated vomiting, inability to keep fluids down, a swollen rigid abdomen, blood in vomit or stool, faintness, or signs of dehydration. Prompt assessment is also appropriate with unexplained weight loss, persistent fever or marked weakness.

Ask whether you need blood, stool or breath testing, and whether any medicine could be affecting appetite. Tell your clinician about recent travel, dietary changes, bowel pattern, menstrual changes, pregnancy possibility and how much you can currently eat and drink.