My vegan protien has colestrol (not vegan)

I have a query about a product. - am a vegan and bought nutralien plant protien(pea and brown rice) chocolate flavour. I recently discovered that colestrol in foods only come from animals and their products. I was shocked to find that my Plant protein had 180mg pr 100gms. Do you know why there would be colestrol even though nutralien plant protien is supposed to be vegan. https://naturaltein .in/product/veganprotein/ Here is the website.