Discussion: Many patients (also healthy people) use both indexes (Glycemic index, and Insulin index) without knowing their drawbacks:

These metrics are inaccurate; they do not reflect interactions between foods and disregard food sources. (Natural vs. processed) The metrics are a valuable rule of thumb, but you should understand the principles; otherwise, you can quickly go wrong, as happens to many!

All existing calculation methods regarding calorie intake, the glycemic index, and the insulin index are inaccurate and sometimes misleading because they do not emulate the body's activity. Therefore, the current methodology of nutrition computations must be changed.

Link: Advanced Nutrition Calculations Methodology.
https://www.sf-healing.com/page/227 (Copy & Paste)