Insulin Aspart is a rapid-acting insulin used to control blood sugar levels in people with diabetes. It works quickly after injection, typically starting to lower blood sugar within 15 minutes, peaking around 1 to 2 hours, and lasting for about 3 to 5 hours. This makes it ideal for use before meals to manage post-meal blood sugar spikes. Insulin Aspart is often administered via injection or an insulin pump. It is important for individuals using this medication to monitor their blood sugar levels regularly and adjust their doses as needed, often in conjunction with a healthcare provider's guidance.