Substances that are alkaline are basic, or the opposite of acidic — they have a high pH, while acids have a low pH. Lower pH ...

Baking soda is an alkaline substance that can neutralize excess stomach acid. In small amounts, it provides temporary relief from indigestion and works in a similar way to over-the-counter (OTC ...

These water samples have other substances dissolved in them. They might show up as slightly acidic or slightly alkaline because of this. The pH scale measures how strongly acidic or alkaline a ...

The pH scale measures a substance's acidity or alkalinity, spanning from zero to 14 with seven meaning neither acidic nor alkaline. Substances with a pH lower than seven are acidic, while those higher ...

This belief has led to the popularity of diets that involve consuming high-alkaline foods or substances, such as baking soda. Proponents often monitor supposed results by testing how alkaline ...