The card does not describe how to introduce the protein into the diet for those who have not taken fibre products before: under the method of use it says to see the packaging. In the composition it names only Orafti fibre and psyllium husk powder.
General information (not a manufacturer's instruction): fibre can cause bloating in people who are not used to it, so it is better to start with a small amount and drink enough water; in case of digestive diseases, a doctor's consultation is needed.