A nursing assistant is caring for Mrs. Jackson, an insulin-dependent diabetic who has not eaten breakfast. What should the assistant do?

The most appropriate action for the nursing assistant to take is to report the information regarding Mrs. Jackson's lack of breakfast. Insulin-dependent diabetics require regular meal intake to help manage their blood sugar levels. Skipping meals can lead to hypoglycemia, which is a dangerously low blood sugar level that can result in serious health complications.

By reporting that Mrs. Jackson has not eaten, the nursing assistant ensures that the healthcare team is aware of the situation. This allows them to evaluate her condition more thoroughly and decide on the best course of action to prevent any potential health risks. It is crucial for the safety and health of diabetic patients that their meal intake is monitored and addressed promptly.

The other options do not adequately address the health needs of a diabetic patient. Ignoring the situation could have serious consequences, and forcing a patient to eat may lead to further complications, including distress or choking. Disposing of food would not solve the problem and would overlook the need for proper diabetic care. Thus, reporting the lack of breakfast is the best choice to ensure Mrs. Jackson's safety and well-being.