Diet Pepsi (Pepsi) (1 Serving)

Repeat the test on a separate day under similar conditions; individual glucose responses to diet soda can vary and sensor readings can occasionally be noisy.

Try caffeine-free Diet Pepsi or switch to plain sparkling water, since caffeine can raise glucose in some people through stress-hormone effects.

Avoid drinking it when fasting, sleep-deprived, stressed, or immediately before intense exercise, as these factors can amplify a rise.

Drink it with a balanced meal rather than alone, and compare your response with the same meal plus plain water.

Keep the serving size smaller and sip slowly; compare a half-can versus a full can to identify your personal threshold.

If repeated tests show a substantial rise, limit or avoid Diet Pepsi and discuss the pattern with a clinician, especially if you have diabetes or take glucose-lowering medication.