To me, Bulletproof coffee tastes like a double double from Tim Hortons. So I agree, it's definitely an unspeakably vile tasting concoction. :)

Depends on ingredients - Bulletproof branded coffee is OK but to mild and bland for my taste - not as bad as American hotel coffee but nothing like Italian. In UK Tesco finest Costa Rica coffee , filtered water , thermos drip machine (hot plate ruins coffee) Rachels Organic grass fed butter (like cream) then must be blended actually tastes amazing I sometimes add a little expensive GMC organic forest honey or Xylitol if I want zero carbs.

I didn't mind it... but MCT oil has the same effect on my digestive system as eating a pound of sugar free haribo gummy bears.

I found it a good offset against keto-constipation.