I've read that as long as you drink it 1 house before food it doesn't alter stomach acid. I've been drinking half tspn in big glass of water every morning for 6 weeks. It has got rid of my Bacterial Vaginitis which I've had for a year. Antibiotics and everything else Dr prescribed didn't work. Baking soda worked in two days. Until you've had this you're wouldn't know what it's like. Awful awful. Have cut out my losec. And my HRT.