Fasting can have multiple objectives/benefits. Two biggies are (1) autophagy and (2) fat loss.
(1) is NOT interrupted by consuming fat--especially SCT/MCT fats like butter and coconut
(2) is interrupted by consuming fat, by the precise amount consumed
Since your goal is (2) I would focus more on overall satiety strategies. Maybe design a small arsenal of high-nutrient, macro-indifferent, low-calorie meals (kraut, soup, seafood, eggs, berries, etc.) that can displace a few others in the weekly rotation without interrupting your medication. The "last 10" are always going to be slow.
Lots of: urban hiking, cycling, sprinting
Lots of: fresh meat, seafood, eggs, organs, tubers, starch fruits, vegetables, meat fat, dairy fat, oil fruits
Some: cured meat, dairy protein, sweet fruits, rice, pulses, tree nuts, oil seeds
Minimal: soy, refined proteins, sugar, liquid carbohydrate, grains, refined oils, peanuts