I need coffee to wake up in the morning. Unfortunately drinking it black makes me feel queasy. Eating a tums Seems to be my best solution. Between the black coffee which is 5 cal and the Tums which is 10 cal am I breaking my fast?
It’s not a huge deal, no.
If the Tums worries you, try 1/2 tsp of baking soda in a small (4 fluid ounce) glass of water. It’ll taste bad, so chug it fast. Actually, I find it works better than Tums for stomach acid.
Also, try cold brew coffee. I find it much less acidic.