Being on Keto for last 8 weeks (w/o cheating even a single day, minus 20 gms carbs every day), I use coconut oil, olive oil, flax seed oil and my favorite, Dave Polumbo's "Macadamia Nut" oil. I actually take several tablespoons of oil a day, and by far, the easiest and best, are coconut oil and Dave's Mac Oil. The Mac oil is the best.