What is a feature of the artificial fat replacer olestra?

Olestra is a synthetic fat replacer that provides a similar taste and texture to fat without adding calories, as it is not absorbed by the body. It can withstand high cooking temperatures, making it suitable for frying and baking. However, olestra can cause gastrointestinal discomfort in some individuals, such as diarrhea and cramping, particularly when consumed in large amounts. Additionally, it can inhibit the absorption of certain fat-soluble vitamins.