Which of the following is not a source of glucose?

Shrimp is not a source of glucose because it is primarily a protein source, with very little to no carbohydrate content. Glucose is a simple sugar that is primarily derived from carbohydrate-containing foods.

Whole-grain bread contains complex carbohydrates, which the body breaks down into glucose during digestion. White potatoes are starchy vegetables that are high in carbohydrates and thus are converted into glucose as well. Dates are a dried fruit that contains natural sugars, including glucose, making them a significant source of this carbohydrate.

In contrast, shrimp provides protein and some essential fats while lacking the carbohydrates that would contribute to glucose levels, making it the correct answer to the question regarding sources of glucose.