Can acid reflux worsen by taking biotin, b12, omega 3 fish tabs. vitamin k2 , buffered vitamin c,vitamin d3 have barrett's esophagus and a hernia.

Possibly fish oil: Fats including fish oil can sometimes aggravate reflux; this is less likely if taken with food. But certain supplements are proven beneficial for reflux, esp. melatonin. See http://www.greenmedinfo.com/blog/5-natural-heartburn-remedies-proven-beat-drugs and http://www.denvernaturopathic.com/MelatoninandGERD.htm and http://tinyurl.com/p88fxjm