I have had severe acid reflux for most of my adult life . I take prescription medication daily to keep it under control, however, there are days where I have forgotten to take my meds on time and I've woken from a sound sleep with severe acid indigestion. The acid has been so strong that I can hardly breathe. I always keep a bottle of Tuns Smoothies Extra Strength for these occasions. Not only do they have a very pleasant taste, they instantly soothe my heartburn and I am able to go back to sleep. I highly recommend this product.