hubby and I were ...uh ahem ... enjoying some coconut oil in the bedroom,... I maybe ingested 1/2 a tablespoon of straight high quality oil. 5 mins later my stomach was rumbling like I just drank a cup of milk (latose intolerant). Then I realized that the coconut oil and the rumbling happen quite a bit. What might cause that? Seems to be 30 mins to hr of rumbly noise...with no strong after effects beyond that.
Have been paleo for more than a year, usually have a little bit of oil everyday, but only rumbles when not accompanied by other food.
This is a very common experience. Start with a teaspoon or less and work your way up.
As to a definitive answer to why this happens in some people I don't think I've ever seen one. Lots of speculation but no reasons that will pass any scientific scrutiny. Just know it will end once your body gets used to the CO.
I don't do well with coconut oil either. However I have no such issue with palm kernel oil (another rich source of medium chain triglycerides,) ghee, or tallow/lard. No hard and fast rule that you HAVE to have coconut oil.
I can't do coconut oil and my husband does very well with it. We've somewhat attributed it to ancestry (he's Asian, I'm Eastern European). I do far, far better with grassfed butter, which is unfortunate because I do love the taste of coconut oil with some things. Eggs, however, are so much better with butter.