I was interested to learn that gelatin can actually stimulate stomach acid production, which improves digestion and plays an important role in allowing beneficial gut flora to thrive. (holisticsquid.com)
The caffeine in soda can also increase stomach acid production, worsen episodes of diarrhea, and contribute to constipation. (ksl.com)
● Drink 1 - 2 tablespoons of apple cider vinegar or lemon juice in 4 ounces of warm water 15 - 20 minutes before a meal to support stomach acid production. (onnit.com)