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Two hours after eating — reference ranges
The post-meal value that matters diagnostically: by two hours, glucose should be most of the way back down.
| Band | mmol/L | mg/dL | Was es bedeutet |
|---|---|---|---|
| Normal | under 7.8 | under 140 | Two hours after a meal (or after the 75 g oral glucose tolerance test), a healthy response is back under 7.8 mmol/L. |
| Impaired glucose tolerance | 7.8-11.0 | 140-199 | "Prediabetes" by the two-hour criterion: the body clears the glucose, but slowly. |
| Diabetes | 11.1 or above | 200 or above | Two hours after a 75 g glucose load, 11.1 mmol/L or higher meets the WHO criterion for diabetes. |
Im Kontext lesen
The two-hour value is the one the oral glucose tolerance test (OGTT) uses: a measured 75 g glucose drink, blood drawn at two hours. A home meter reading two hours after a normal meal is a rough cousin — useful for trends, but only the standardised test counts for diagnosis.
The two-hour number catches a different problem than the fasting number: it is the first thing to move when glucose clearance slows, which is why some people have a normal fasting value and a diabetic two-hour value at the same time.
Wann zum Kliniker
- Two-hour values at or above 11.1 mmol/L — book a formal test.
- Repeatedly 7.8-11.0 after normal meals — the earlier it is caught, the more reversible it is.
Nur Referenz, keine Diagnose. Die Schwellen auf dieser Seite sind populationsbezogene WHO- und ADA-Werte; Ihr Kliniker interpretiert Ihre eigenen Zahlen gegen Vorgeschichte, Medikamente und andere Tests. Wenn ein Wert mit Symptomen kommt oder sich weiter in die falsche Richtung bewegt, ist das das Signal zum Handeln — nicht diese Seite.