Invented by Dave Asprey, owner of Bulletproof Executive, to “supercharge your brain function and create effortless fat loss with no cravings,” Bulletproof Coffee is basically a cup of black coffee with butter and either MCT oil or coconut oil mixed in. Sounds gross? Yet it is actually delicious! BPC works for those who don’t have time for breakfast, practise intermittent fasting or simply don’t like eating in the morning. It will keep you full and energised for hours.