What is Acidity?
Acidity is described in terms of the pH value of a substance. The pH value ranges from 0 to 14 and is an indication of the acidity or basicity of an aqueous solution. A value of zero indicates highly acidic, a value of 7 indicates neutrality and a pH of 14 signifies highly basic or alkaline. Water has a pH value of 7.
Acidity in the stomach is the result of excess gastric acid production that may cause heartburn and other problems. The purpose of the acid secreted in moderate quantities in the stomach is to aid in the digestion of proteins that are consumed. The pH of the stomach acid ranges between 1.5 to 3.5.
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