Testing a food's glycemic index can involve 10 or more healthy people eating enough of the food to provide 50 grams of carbohydrates, with blood sugar measured repeatedly over two hours.
Sources
- Low-glycemic index diet: What's behind the claims? (mayoclinic.org)
- https://glycemicindex.com/about-gi/ (glycemicindex.com)
- https://www.omnicalculator.com/health/gi (omnicalculator.com)
- https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9486504 (image-ppubs.uspto.gov)
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