There’s no “best” time to take vitamin C supplements. It’s a water-soluble vitamin that you can take at any time, with or without food. But here are some considerations.
Exclusion criteria were—ASA physical status >II; previous oesophageal or gastric surgery; pregnancy; large hiatal hernia >3 cm; Los Angeles grade C/D oesophagitis; para-oesophageal hernia; Barrett’s ...