So glad you posted this IF! The nutritionist I worked with early on in my diabetes had a long talk with me about healthy fats (olive oil, avocados, nuts, etc.) and unhealthy fats (trans fats, fatty red meat, processed foods in general)...and it's an important distinction.
I think too often we think of fat as the enemy...and we're lumping the good in with the bad. There's a world of difference to your body if you're eating fresh avocado vs. french fries.