Definitely works as advertised. I have been doing the Bulletproof diet for a couple months and hit a plateau after losing 38lbs. I was starting to get frustrated and carbs and sugar were looking very tempting. After taking Kapex for a few days I broke through a weight loss barrier I had been stuck against for a decade and regained my faith and reset my metabolism. I recommend this in combination with the BP diet and intermittent fasting. Throw in a protein fast once in a while and you may feel superhuman.
I've been taking this for 2 weeks now and feel more steady energy through the day and less hunger. I have eaten ketogenically off and on for a few years now, so feeling a difference tells me it's definitely doing something. I would recommend anybody interested giving it a try to see how they might benefit.