I've just seen some olive oil spread in a local supermarket. It is actually only 22% Olive oil and the rest is rape seed oil. It claims however to be virtually trans fat-free and to contain no hydrogenated fats. It gives a breakdown of its fat profile compared with butter.

Olivio spread butter
Fats 59g 81.7g
of which:
saturates: 14g 54
trans 0.5g 5.0g
monosat. 30g 20g
polyunsat 14.5g 2.5g

I'd be interested in any comments