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There is often misunderstanding of lemonâs pH outside the body versus inside the body. Letâs get this straight and expound on 10 benefits of regularly taking lemon juice with warm water (note: NOT equal to lemonade!). Outside the body, lemon juice is acidic (pH is below 7). This is a non-issue.
Lemon juice is less acidic than the gastric acid -- primarily Hydrochloric acid -- already present in the body. Gastric acid has a pH of between 1-2. Lemon juice has a pH of 2-3. That will dilute (i.e., lower the acidity) of stomach acid, but that acid will be neutralized in the small intestine by the presence of and production of bicarbonates. There is no significant effect on the body's acidity from consuming lemon juice.