Which of the following foods has a low glycemic index (less than 55)?

The correct answer is that milk and grapefruit have a low glycemic index, which is less than 55. Foods with a low glycemic index are those that result in a slower and more gradual rise in blood glucose levels after consumption. Milk, despite containing some carbohydrates, has a relatively low glycemic index due to its protein and fat content, which helps to moderate sugar absorption. Grapefruit is also known for having a low glycemic index and is a great source of vitamins, while providing minimal calories.

In contrast, white bread typically has a higher glycemic index due to its refined carbohydrate content, which is quickly broken down and absorbed. Brown rice, while an improvement over white rice in terms of nutritional profile, still has a moderate glycemic index that may be higher than 55. Pasta’s glycemic index can vary based on cooking time and the type used, but it often falls into a higher glycemic category, particularly when overcooked. Therefore, milk and grapefruit stand out as better options for maintaining steady blood sugar levels.