Everyone knows water is essential for health—we see it in headlines and health guidelines everywhere. But plain water can get boring fast. While we wisely skip sugary sodas, many of us reach for sparkling water to mix things up. Recent research, however, suggests this choice might not be ideal for curbing hunger.
Scientists at Beir Zeit University in Palestine investigated how carbonated water affects satiety. Their findings? Drinking sparkling water raises levels of ghrelin—the hunger hormone—more than still water does. The culprit: carbon dioxide bubbles, which trigger this appetite-boosting response.
This effect is minor day-to-day but can sabotage weight loss efforts. It may lead to overeating (and reaching for treats). Sodas pose the same risk due to their carbonation. For better results, stick to still tap water.