I agree.I think they could be the pulp from grapefruit if thats what you mixed with olive oil. Flukes dont have strings attached to them that I know of. I saw the same things come out while doing a Liver Flush and I had mixed fresh sqeezed grapefruit juice with the olive oil. The same with eating fresh pineapple. It is not easily digested and comes out looking like broken up parasites.