Black coffee without sugar (1 piece)

Try decaffeinated or half-caffeinated coffee; caffeine can raise glucose in some people even without sugar.

Drink coffee after a balanced meal rather than on an empty stomach, especially if you notice a consistent rise with morning coffee.

Pair coffee with a protein- and fiber-rich option such as eggs, plain unsweetened Greek yogurt, or a small handful of nuts instead of drinking it alone.

Avoid adding sweetened creamers, flavored syrups, honey, or milk alternatives with added sugar; use unsweetened milk or a small amount of cream if desired.

Keep the serving smaller or sip it slowly, then check whether a second cup produces a larger rise.

Track your response to different coffee types, brew strengths, and timing for several days; if spikes remain frequent or significant, discuss them with your clinician.