Nescafe - Coffee Black, No Milk, No Sugar, 200ml Water, 2 Cup (1 serving(s))

Reduce the caffeine dose: try one cup instead of two, use less instant coffee per cup, or split the second cup later in the day.

Switch to decaffeinated or half-caffeinated coffee for 1–2 weeks and compare your glucose response; caffeine can raise glucose in some people even without sugar or milk.

Avoid drinking black coffee on an empty stomach. Have it after or alongside a balanced meal containing protein, fibre, and healthy fat—for example, eggs with non-starchy vegetables, plain Greek yogurt with nuts, or tofu with vegetables.

Drink coffee earlier in the day and avoid it when sleep-deprived, stressed, or after poor sleep, as these factors can amplify caffeine-related glucose rises.

Test different preparations: a weaker brew, slower sipping over 30–60 minutes, or having water alongside coffee may be better tolerated than drinking two strong cups quickly.

Use your glucose readings to confirm the pattern on several separate days, and discuss persistent or large rises with your clinician, especially if you use diabetes medication.