Fasting glucose is typically targeted at 90 mg/dL or below, levels over 120 mg/dL classify type 2 diabetes, and values between those define pre-diabetes.
"normally people want to have their glucose at 90 or below. But, um, and when it gets over 120, then you're typically classified as type 2 diabetic, and so in between is typically called pre-diabetes." (said at 0:07:34)
The diagnostic thresholds stated by the speaker contradict established medical diagnostic criteria for diabetes and prediabetes. Standard diagnostic guidelines define diabetes as a fasting plasma glucose (FPG) level of 126 mg/dL or higher (≥126 mg/dL), not >120 mg/dL. Prediabetes (impaired fasting glucose) is clinically defined as fasting glucose levels between 100 mg/dL and 125 mg/dL, not between 90 mg/dL and 120 mg/dL. Normal fasting plasma glucose extends up to 99 mg/dL (<100 mg/dL).
- contradicts: Update on the current modalities used to screen high risk youth for prediabetes and/or typ… (Annals of pediatric endocrinology & metabolism 2019)
"the FPG is abnormal (>100 less than <126 mg/dL)" (abstract, results)
pubmedfull study (doi) - contradicts: Clinical and Public Health Implications of 2019 Endocrine Society Guidelines for Diagnosis… (Diabetes care 2020)
"a standard approach (HbA 1c ≥6.5% or FPG ≥126 mg/dL)" (abstract, methods, passage verified)
pubmedfull study (doi) - contradicts: Screening and Diagnosis of Prediabetes and Diabetes in US Children and Adolescents. (Pediatrics 2020)
"FPG ≥100 mg/dL (sensitivity = 35.8%, specificity = 77.1%). Confirmed undiagnosed diabetes (HbA1c ≥6.5% and FPG ≥126 mg/dL)" (abstract, results, passage verified)
pubmedfull study (doi)