The 9 "Zero-Calorie" Drinks That Still Wreck Your Blood Pressure Numbers

3. Coke Zero Sugar

Marketed as the “healthier” alternative for those who love the classic soda taste, Coke Zero Sugar blends aspartame with sucralose to win over calorie-conscious consumers. Yet those zero calories don’t guarantee a free pass where blood pressure is concerned. Studies investigating artificially sweetened sodas have linked them to increased risk for high blood pressure and metabolic disturbances. The science suggests that both aspartame and sucralose may disrupt some of the body's natural ways of handling sodium and vascular tone, especially with high or daily intake. While caffeine content per serving varies, any added stimulant can contribute to a short-term rise in blood pressure—a double whammy if you’re sensitive. All this means it’s wise to view Coke Zero Sugar not as a fail-proof swap, but as a treat to be enjoyed with awareness. If you love the taste, balance it out with water, seltzer, or naturally flavored alternatives for the majority of your day.

4. Sprite Zero

Sprite Zero delivers that crisp, lemon-lime flavor so many crave—minus the sugar rush. The “zero” comes from using aspartame and Ace-K rather than calorie-heavy sweeteners, but the cardiovascular impact can still cut through the refreshment. Sodium content in Sprite Zero is generally modest but becomes relevant if you drink several cans, especially since sodium and artificial sweeteners may team up to undermine healthy blood pressure levels. Emerging evidence suggests that artificially sweetened citrus sodas have similar risks to cola-flavored varieties, only without the caffeine factor. That means Sprite Zero’s effects are mainly linked to sweetness chemistry and how your veins respond. Even here, little shifts count. If citrus sodas are your go-to, consider enjoying them just a bit less often, letting each can feel more like a conscious treat. The real refreshment, as always, may come from simple, unsweetened sips in between.