Apples have a combination effect because they also contain pectin which is an water-soluble fibre. This binds to bile and we pass in out in our stools. Therefore if we can consume more pectin then more bile will be passed and this forces the liver to produce more fresh bile which washes through the biliary system.
The amount of malic acid in two apples is about 3 grams which is the recommended daily dose. If you are eating one apple then you will need to 2 and a half 600mg tablets. Each pill needs to be taken with a cup a water.