The key factor for blood pressure is sodium. Mineral waters with higher sodium content may negatively affect blood pressure in sodium-sensitive individuals and increase fluid retention. So the better question is “which sodium level,” not “which brand.” Comparing the sodium (Na) value on labels is the most practical method. People with hypertension should prefer low-sodium options and manage total salt intake from foods as well. If blood pressure fluctuations are significant, seek clinician guidance and personalize the plan.