Is saliva acidic or alkaline? Analysis of normal range and its effects.

唾液是酸性還是鹼性?正常範圍與影響解析

Normal pH value of saliva

Saliva typically has a pH value between 6.2 and 7.6 . A pH value below 7 is acidic, while a pH value above 7 is alkaline. Therefore, saliva can be either slightly acidic or slightly alkaline, making it one of the slightly neutral to fluctuating bodily fluids.

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Effects of excessively high or low salivary pH

  • Excessive alkalinity : may lead to the formation of tartar .
  • Excessive acidity can easily lead to problems such as tooth decay, gum infection, and bad breath.

Changes in the pH value of saliva are closely related to the activity of oral bacteria. Bacteria use sugars to produce acidic substances, which further damage teeth.

The relationship between diet and salivary pH

  • Ketogenic diet : If you only consume high-fat and high-protein foods, your saliva may become acidic.
  • A healthy ketogenic diet includes plenty of vegetables (about seven to ten cups a day), which provide alkaline minerals such as potassium, magnesium, and calcium, helping to balance acidic reactions.

Other influencing factors

  • Oral candidiasis : produces a large amount of ammonia, making saliva more alkaline .
  • Chronic stress : may lead to excessive alkalization of saliva.
  • The pH levels of other parts of the body , such as blood being alkaline, gastric juice being extremely acidic, bile being alkaline, and the large intestine being acidic, each have their own physiological functions and cannot be judged by a single standard.

The diagnostic significance of saliva pH value is limited.

The pH levels of saliva or urine can only serve as reference indicators and cannot accurately reflect the overall health condition. Blood pH levels are even more difficult to measure because blood is easily oxidized after being drawn, affecting the results.

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Conclusion: Dietary adjustments are fundamental.

Instead of trying to adjust saliva pH through acidic or alkaline supplements , it's better to start with your diet. A healthy ketogenic diet effectively balances the body's acid-base balance, reduces sugar intake, inhibits Candida albicans, and provides sufficient minerals through vegetables, allowing the pH of saliva and urine to naturally stabilize. The focus is not on pursuing an "alkaline body," but on maintaining nutritional balance and metabolic health.

 

YouTube source: https://www.youtube.com/watch?v=eTkst1fFkqU

YouTube Column: Dr. Berger in Chinese Health knowledge

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