Answer the following question given this paragraph: 

Some cases of type 2 diabetes can be cured with weight loss. However, most people with the disease need to take medicine to control their blood sugar. Regular exercise and balanced eating also help, and should be a regular part of the treatment for these people. Like people with type 1 diabetes, people with type 2 diabetes must frequently check their blood sugar.


Q: Like people with type 1 diabetes, people with type 2 diabetes must frequently check what level?


A:
blood sugar