I was having heart palpations and tacachardia. It was also worse with carbohydrates. I eliminated all possible food allergens. I didn't really think that not having stomach acid could cause heart issues, but it can! I have been diagnosed with adrenal fatigue, and they mentioned that I should take HCL however I never did. Due to getting enough Sea Salt , so I figured it would have converted into HCL from the chloride in the Sea Salt . One day after 4 months of feeling these awful heart issues (which cause anxity, and worsen adreanal fatigue) I was bloated and suufering indigestion, and took an HCL capsule and digetive enzymes, and strangely enough ,my heart issues stopped imidiatly. I too don't notice a difference when just taking the enzymes. The HCL was criticle.