Don't worry..

The first week when I took the oil, I nearly had to barf every single time.
A friend who had recommended the oil to me came along and we took some measures (after discovering she could hande it well enough).
Refrigerate the bottle (it was unrefrigerated).
Mix the oil with a little bit of salad olive oil or cream to take away the awful taste..
And somehow, 2 weeks later I could even take it undiluted... as I got used to it.

You and me have just very sensitive noses and it apparently reeked rancid to us.. which it wasn't.
I still take it undiluted as I don't want it to spoil my fresh cheese (quark) ... the first time I mixed it, I nearly barfed when eating the fresh cheese and that was a lot more to swallow down!

Fietser