New Quiz Helps Type 1 Diabetics Master Carb Counting

What Was Studied and Why It Matters

For people living with Type 1 diabetes (T1D), counting carbohydrates is one of the most important daily skills. Every meal requires estimating how many carbs are on the plate so that the right amount of insulin can be taken. Get it wrong, and blood sugar swings too high or too low. Yet until now, there was no reliable tool in French to measure how well a patient actually understands carb counting.

Researchers in France set out to fix that. They adapted an existing American quiz — the AdultCarbQuiz — into a culturally appropriate French version, swapping out American foods for French ones and fine-tuning the questions with input from both diabetes specialists and real patients living with T1D.

What the Researchers Found

The final tool, called GluciQuizz, contains 36 questions and takes about 15 minutes to complete. It was tested on 190 people living with Type 1 diabetes. Here is what the results showed:

• The quiz is reliable: Statistical testing confirmed that the questions consistently measure the same underlying knowledge, giving the tool a strong internal consistency score.
• The quiz is clinically meaningful: People who scored higher on GluciQuizz also spent more time in their target blood sugar range — a key measure called Time in Range (TIR). In simple terms, better carb-counting knowledge linked directly to better day-to-day glucose control.
• It is culturally relevant: By replacing items like American fast food with foods commonly eaten in France, the quiz reflects real-life eating habits, making the results more accurate and useful.

What This Means for Real Patients

This research matters because it gives diabetes care teams a practical, validated way to identify gaps in a patient's carb-counting knowledge. Instead of guessing what a patient does or does not understand, a clinician can now use GluciQuizz to pinpoint exactly where education is needed — whether that is understanding food labels, estimating portion sizes, or knowing which foods raise blood sugar the fastest.

For patients, taking a quiz like this could be the first step toward a more personalized education plan. If your diabetes team identifies that you struggle with estimating carbs in mixed meals, for example, they can focus their coaching there rather than repeating general advice you already know.

Accurate carb counting also pairs directly with the tools you use every day. Whether you rely on insulin pens, pumps, or continuous glucose monitors, having reliable diabetes supplies from a trusted source like MDS Diabetes ensures your equipment keeps pace with your knowledge and care plan.

Bottom Line

GluciQuizz is a new, validated 36-question French-language tool that measures carbohydrate-counting knowledge in people with Type 1 diabetes. Higher quiz scores were linked to better blood sugar control, confirming that this kind of targeted knowledge assessment can make a real difference in patient outcomes. Expect to see tools like this used more widely in diabetes education programs as care teams look for smarter, more personalized ways to support patients.