Coffee (Brewed From Grounds, Decaffeinated) (1 Cup (8 Fl Oz)) and Oat Milk (1 Cup)

Choose an unsweetened oat milk with no added sugars, syrups, or malt-based ingredients; compare labels because carbohydrate content varies widely by brand.

Use a smaller pour of oat milk, or dilute it with water, to reduce the carbohydrate load while keeping the coffee creamy.

Try unsweetened soy milk or unsweetened almond milk in place of oat milk; both are typically lower in digestible carbohydrate.

Have the coffee alongside a small protein- and fat-containing option, such as a boiled egg, plain Greek yogurt, or a small handful of nuts, rather than on an empty stomach.

Avoid adding sweeteners, flavored creamers, or coffee-shop toppings, including “natural” sweeteners that can still raise glucose.

If the rise persists, test whether decaf coffee alone causes it by drinking it black on a separate day; caffeine-free coffee can still affect some people’s glucose response.