What does unintentional weight loss feel like with type 1 diabetes?

You may notice looser clothing, reduced muscle fullness or a steady drop on the scales, sometimes while your appetite is unchanged or increased. When insulin is lacking, glucose cannot enter cells normally, so the body starts using stored fat and muscle for energy. This may occur with intense thirst, passing urine often, dry mouth, blurred vision, hunger and unusual tiredness. Weight loss alone does not establish diabetes, but this combination deserves prompt testing.

If these changes are new or progressing, contact a clinician promptly for a blood-glucose assessment. Type 1 diabetes can develop quickly in children, teenagers and adults. Bring a list of medicines and note thirst, urination, appetite, vomiting and how quickly the weight changed. Do not try to manage suspected diabetes with dieting alone; treatment may require insulin and clear instructions from a healthcare professional.

Go to urgent care for vomiting, stomach pain, deep or fast breathing, fruity-smelling breath, severe drowsiness, confusion, dehydration or inability to drink. These can signal a dangerous build-up of acids in the blood. Get same-day advice for rapidly worsening thirst, urination, weakness or weight loss, even if you have not previously been diagnosed.

Ask which glucose tests are needed, whether ketones should be checked, how to recognise an emergency, and what support is available if insulin is prescribed.