The digestive process of the palm civet extracts the bitterness from the coffee beans, apparently.
Times, Sunday Times (2006)
The fibre in fruit and vegetables slows the digestive process.
Times, Sunday Times (2015)
It is one of the chemicals produced in the stomach to assist the digestive process.
Hanssen, Maurice & Marsden, Jill E For Additives (1987)
They can also assist in the production of bile, which helps with our digestive process.
The Sun (2015)