What is the formula for calculating Glycemic Load of a food?

The formula for calculating Glycemic Load (GL) of a food is based on the concept of how much a serving of food will raise blood sugar levels, taking into account both the carbohydrate content and the glycemic index of that food. The correct formula is derived from the relationship between these two variables, specifically the need to quantify not just the carbohydrate content, but also how quickly those carbohydrates raise glucose levels.

Glycemic Index (GI) represents the rate at which carbohydrates in the food are digested and absorbed, while the carbohydrate content gives the amount present in a serving. The formula combines these elements by multiplying the carbohydrate content in grams by the Glycemic Index, and then dividing by 100. This normalization allows for a standardized measure across different foods, enabling better dietary planning and blood sugar management.

By multiplying the carbohydrate content by the Glycemic Index, the formula provides a clearer picture of how a specific serving will affect blood sugar levels, rather than merely looking at the carbohydrate content or index in isolation. This is crucial for individuals managing their glucose levels, such as those with diabetes or metabolic syndrome, making the Glycemic Load a valuable tool in holistic nutrition and diet planning.