9. Starbucks Medium Roast
pH level: 5.11
At number 9 on our list of least acidic drinks for stomach ulcer patients, we have medium roast coffee from Starbucks. If you love coffee and Starbucks in particular, you should definitely give the medium roast coffee a try since it has an acceptable level of pH value, which is why it’s on our list of least acidic drinks for stomach ulcer patients.