Alkaline water is mineral-rich and riding the wellness wave. Check out to know if it's a major hydration upgrade for you or just another hyped wellness trend.

What can the pH level of the subsurface ocean on Enceladus tell us about finding life there? This is what a recent study ...

No doubt this is driven by clever marketing, advertising alkaline water as an easy way to "make your body less acidic." For many people, the idea of a more alkaline and less-acidic body sounds ideal.

According to Dr. Koufman, however, alkaline water can benefit people who suffer from acid reflux because, as her published research has found, the stomach enzyme pepsin dies at pH 8.

"Theory behind drinking alkaline water for digestion is that the higher pH of the water lowers the pH of stomach acid (typically 1.5 to 3.5) and helps prevent or treat acid reflux," she said.

Substances that are alkaline are basic, or the opposite of acidic — they have a high pH, while acids have a low pH. Lower pH levels reflect a higher quantity of positively charged particles.

Alkaline foods have a high pH level, while acidic foods have a lower pH. Some examples of alkaline foods are non-starchy veggies, fruits, nuts such as chestnuts or pumpkin seeds, and legumes like ...

Lemon juice has a pH level between 2 and 3, which makes it acidic. Although lemon juice may have an alkalizing effect on your urine, it has very little influence on the pH of your blood.