Coffee (1 Mug (8 Fl Oz)) and Soy Milk (1 Cup)

Choose unsweetened, unflavoured soy milk; avoid sweetened, vanilla, or barista-style versions with added sugars.

Have coffee after a balanced meal rather than on an empty stomach; include protein and fibre such as eggs, plain Greek yogurt, chia seeds, or almonds.

Try half-caf or decaffeinated coffee, since caffeine can raise glucose for some people even without sugar.

Reduce the soy-milk serving and avoid adding syrups, honey, sugar, or sweetened creamers.

Add cinnamon or unsweetened cocoa powder for flavour instead of sweeteners.

Test one change at a time—such as decaf versus regular coffee or different soy-milk brands—and compare your post-drink glucose response.