Many people believe that drinking water right after eating fruits is bad for health as it can cause flatulence and pain. It is assumed that fruits contain a high amount of sugar and yeast (a microbe), and when you drink water immediately after eating a fruit, it dilutes the stomach acids. This creates a favourable environment for the yeast to survive and produce alcohol and carbon dioxide — a common cause of gas build-up in the stomach.

‘This is a myth that most tend to believe. Even after drinking water, the stomach pH remains in the range of 2-4, which does not favour the growth of yeast. Moreover, it requires yeast to remain in the stomach for more than 2-3 hours to proliferate and produce carbon dioxide,’ explains Dr Neha Sanwalka, nutritionist and dietician.
Source: thehealthsite
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