I asked my Pediatrician before buying who has an experience of 30 years. He said all these are gimmicky, dont work. Still I went ahead with the purchase. This absolutely makes no difference to the child. If you think its making a difference, then it means that you are in the placebo effect and nothing else. If your partner changes this bottle with a bottle of mineral water, still you would think that this is solving all your childs gastric issues. Dont fall into the trap and waste your 30+ dollars