The “best time” depends on your goal. After meals, bicarbonate-rich mineral water may help some people feel less bloated. After exercise, it can support fluid and electrolyte replenishment. During the day, one bottle can be used to complement water intake and mineral support. If you have reflux or gastric sensitivity, carbonation may worsen symptoms when taken with or right after meals, so timing should be adjusted. If you have hypertension or fluid retention, pay close attention to sodium content and avoid unlimited intake at any time of day.