I am quite acidic . That means I have more acid and less alkaline body acidity.
What I do to upset this imbalance is have a warm glass of honey lemon drink every morning as soon as I am up. That's half a lemon juiced, plus 1 tablespoon of honey on a glass of warm water. I have also totally revised my eating fare. These days, I eat lots of green, leafy vegetables and mostly alkaline fruits. I stay away from red meat. When I eat chicken I only eat the breast parts.
I have voluntarily refrained from eating pastries, pastas, grains (in our case, rice), I take coffee sparingly and hasn't drank colas for a long while now.