Answer:
It is not possible to be sure that the weight loss was due to fat absorption.
Explanation:
Drugs that promote weight reduction are very dangerous to health as they can promote serious problems that will harm the health of the patient. These drugs also do not deliver what they promise, because they promise that weight loss will happen due to their ability to promote absorption of fat ingested while eating, however, these drugs make the patient nauseous, so the patient will consume little food due to to malaise and thus lose weight.
A person who wants to lose weight should do so with the help of exercise and medical advice and not with deceptive medications.