In the context you describe, it would be a wonderful complement for you to fatty-up your morning coffee if you need a brain boost or better appetite suppression to make it to your OMAD etc. As Dr. Fung has well explained, when you’re not doing extended fasting for autophagy, fat in coffee/tea is fine because it does not create any insulin release. Plus, as Dave Asprey of BP has experimented with, the BP coffee fuels the brain up front for the day, with many benefits to how you may feel (energized in a new way) if you’ve got a mentally demanding situation.
Currently I’m using about 2 tbsp hand-chopped cacao butter (but am switching the more creamy tasting, deodorized version which is called cocoa butter once my cacao runs out) along with 2 tbsp good butter - and often I also add some MCTs, due to crushing brain stress levels at times. Often everything doesn’t melt perfectly, but I don’t care, as I prefer to not use machines in the morning Brainz are doing great, and my recomp slowly continues at 2 years LCHF/keto.
Over the course of my meals, the morning CB and butter, plus other butter/ghee, eggs, and/or sometimes beef fat later in the day etc certainly is resulting in a higher stearic acid intake than before - and that can’t hurt, being that I’ve got years and years of PUFAs to counterbalance/detox (though I did regularly use butter and homemade ghee in those years, so who knows…).
Another interesting angle is that, in the OMAD and TMAD contexts, if you’re someone who easily ends up in a regular significant caloric deficit - you want to ward off that becoming a downregulating rut. So, having the fattier coffee can ensure a better energy intake for the metabolic fire over time.