while enzymes aren’t recommended by Able, I believe they help, too! I was taking this one, similase sensitive stomach, but I have now started to take similase gcfc, and it is working wonderfully in combination with hcl. My nd recommended bitters and enzymes in my case. I believe it is partly due to me having gastroparesis, so in reality, I already had a slow stomach. I don’t use the enzyme all the time, but I have been bouncing back and forth b/w just 1 enzyme pill, or just a small amount of bitters to stimulate things. As mooch stated though, I think the bitters make me thirsty sometimes, too.