The University of Florida, in Gainesville, just leaked research linking one of today’s most popular cooking oils to higher risk for heart attack, stroke, and even early death.

When they tested it under high heat, they discovered it was loaded with “trans-fats”—the deadliest fat source in existence.

Can you guess which one it is so you can avoid it?

➜ Olive Oil
➜ Coconut Oil
➜ Canola Oil
➜ Avocado Oil

Once you choose your answer, just click here to see if you’re right.

You’ll probably be shocked when you find out what it is.