Which term refers to the total glycemic index effect of a meal or dietary plan?

The term that refers to the total glycemic index effect of a meal or dietary plan is glycemic load. Glycemic load takes into account not only the quality of carbohydrates in the food (as indicated by the glycemic index) but also the quantity of those carbohydrates consumed in a serving. It provides a more accurate measurement of how a specific meal will affect blood glucose levels by considering both the glycemic index of the food and the amount of carbohydrate it contains.

This is important because a food with a high glycemic index could have a less significant effect on blood sugar levels if eaten in small portions, whereas a food with a moderate glycemic index could cause a larger increase in blood sugar if consumed in larger amounts. Thus, glycemic load is a comprehensive way to assess the overall impact of a meal on blood glucose, making it a more practical tool for dietary planning and managing blood sugar levels in individuals, particularly those with diabetes or metabolic syndrome.