Volume eating involves eating high volumes of low-energy-density foods, such as fruits and vegetables. This can help people feel satisfied and full while maintaining a low caloric intake.

“Secondly, because adding more acid and more liquid volume, you can have more reflux.” A great remedy for acid reflux or a “sour stomach” is alkaline water, Dr. Berookim says.

The stomach was cut open in a line from the oesophagus to the duodenum and residual food was removed carefully using forceps. A fluorescence picture of the inner stomach wall was recorded with the ...