The difference between long-acting and short-acting insulin mainly lies in injection time, onset speed, duration, and target of action. Both long-acting insulin and short-acting insulin are good options, and it is recommended to use them under the guidance of a doctor. Here are the details:

1. Injection Time

Long-acting insulin is mainly injected before bedtime, while short-acting insulin is typically injected before meals.

2. Onset Speed

Long-acting insulin has a generally slower onset speed, whereas short-acting insulin has a faster onset time, usually becoming effective within 5 minutes after injection.

3. Duration

Long-acting insulin has a longer duration, typically lasting for 24 hours. Short-acting insulin has a duration of generally 4 to 6 hours.

4. Target of Action

Long-acting insulin is more suitable for individuals with high fasting blood glucose levels, while short-acting insulin is more suitable for those with unstable postprandial blood glucose levels. Both long-acting and short-acting insulin can effectively control blood glucose concentrations in the body.

During medication, it is important to maintain a light diet and reduce the intake of high-sugar foods such as candies and cream cakes to prevent an increase in blood glucose concentration and affect personal health.