Most fruit juices are slightly acidic. Rule of thumb (for foods; don't use it for random chemicals): if it tastes sour, it's probably acidic.
stomach walls
Fruit juices are acidic in nature as their are some organic acid present in it . For example : orange and lemons contains citric acid , tartric acid in tamarind and unripe grapes and oxalic acid in tomatoes . it is not harmful to eat or drink substances containing naturally occuring acids in them .
the juices wich are high in acids are orange,lemon, limeand grapefruit.
Digestive juices are acids that dissolve food down into smaller pieces so it can be absorbed into the blood stream .
The stomach contains gastric acids to help break down foods.
Fruit juices are acidic and very tasty.
Some have acids in them and all have sugars.
Virtually all juices contain "acids" but the quantities vary as well as the variation of the types of acids.
Hydrochloric acid is found in gastric juices. With the high acidic levels of hydrochloric acid, it creates a harsh environment and helps to kill off most of the bacteria living in the stomach.
stomach acids aka lysosomes break down the food
This fluid contains enzymes that break down sugars and starches into simple sugars, fats into fatty acids and glycerol, and proteins into amino acids.
vinegar fruit juices lemonade cola pickles tomato ketchup