Diabetic Cat Hard to Regulate? Ask About IGF-1

If your diabetic cat remains difficult to regulate, ask the veterinary team what they are investigating before assuming the food or insulin dose is the only issue. One possible contributor is hypersomatotropism, a condition involving excessive growth hormone.

The iCatCare diabetes consensus explains that cats with this condition may have no obvious change in facial or body appearance. A familiar-looking cat can still need evaluation; a large-looking face is not a diagnosis either.

Bring a record of what was actually given

Gather the prescribed insulin name and concentration, administration schedule, monitoring results, meal amounts, and any missed or uncertain doses. Include the date of each treatment change rather than listing only the current instructions.

Ask the team to review storage and administration technique if that has not recently been checked. An incomplete treatment record should remain visibly incomplete. Do not fill gaps with assumed doses or adjust insulin to create a cleaner-looking glucose pattern.

Our written diabetes care-plan guide helps organize meals and treatment. This visit asks a different question: whether an underlying process is making regulation harder.

Ask what an IGF-1 result would add

Michigan State University’s endocrine laboratory guidance describes growth hormone and insulin-like growth factor 1, or IGF-1, in cats. Test interpretation depends on the clinical situation and treatment history. A result must be interpreted by the team investigating the cat.

Ask why the test is being considered, whether now is the right time, and what would follow a low, high, or inconclusive result. If imaging or specialist referral is proposed, ask which question it would answer before discussing a particular treatment outcome.

Keep the current safety plan explicit

Until the clinician changes it, follow the existing written feeding and medication instructions. Do not sharply restrict food or independently increase insulin because a hormone test has been mentioned.

Ask how to respond to low readings, weakness, tremors, vomiting, or refusal to eat, and which signs need urgent care. Keep an after-hours number with the instructions. The investigation should add a clearer next decision while preserving a safe, workable daily routine for the cat.

Written by PARTNER Editorial Team for general education. Contact your veterinary team for advice about your pet’s individual health and feeding needs.