Apple Juice vs. Water: Impact on Human Saliva Lubrication

Posted: September 9, 2025
A recent study examined the impact of consuming sweetened acidic beverages, specifically apple juice, on the tribological properties, viscoelasticity, and protein composition of human saliva. The research, conducted on 32 healthy adults, found that saliva exposed to apple juice exhibited increased friction compared to unstimulated whole mouth saliva. However, this delubricating effect was transient, with saliva returning to its normal lubricating behavior after 10 minutes. The study also revealed changes in protein composition, with apple juice affecting salivary cystatins and carbonic anhydrase. These findings suggest limited effects of apple juice on salivary delubrication and adsorption, prompting further research on the long-term impact of sweetened acidic beverages on oral health.

This article summary was generated by AI. To view the full article, click the link here: https://pubmed.ncbi.nlm.nih.gov/40901782/
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