According to the American Diabetes Association, blood sugar levels should be less than 180 mg/dL two hours after the start of a meal. However, the normal range for blood sugar levels after eating can vary depending on factors such as age, health status, and what food or drink has been consumed. The International Diabetes Federation provides target levels for people with and without diabetes, which include:

• Non-diabetic: Up to 7.8 mmol/L (140 mg/dL) 2 hours after eating.
• Type 2 diabetes: Under 8.5 mmol/L before meals and under 9 mmol/L after meals.
• Type 1 diabetes: 4 to 7 mmol/L before meals and under 9 mmol/L after meals.

It is important to note that these are general guidelines, and individual targets may vary depending on the persons specific health needs. It is recommended to consult with a healthcare professional to determine the appropriate blood sugar targets for each individual.