I started my primal journey by attempting the BP formula. I like a lot of it and a lot of it isn't for me or can be done in a MUCH more cost effective way. The cool thing about Dave Asprey, the founder, is he admits as much and is basically stating this is what worked for him.
No. It's not really a fast because you're ingesting healthy fats. It's just that you don't need as much solid food in the morning when jumping on the BP coffee. Here's what I've experienced:
1. I started with BP coffee, and now my wife swears by this ultimate low michotoxin formula, they do roast the beans in butter as well so there's a coating of fat over the coffee. This is also supposed to encapsulate the caffeine and turn it fat soluble, giving you more energy over a longer period.
Honestly I don't know if any of that makes a difference. Trying it with other locally roasted beans seems just as good. After all the recipe calls for you to at a minimum add a tablespoon or two of butter into your coffee plus a tablespoon of MCT oil. The cool thing is NONE of these supplements need to be ordered from Dave Asprey's site Bulletproofexec.com - Just buy yourself some grass fed butter, find some MCT oil at the store near the other oils, or just use Coconut oil and call it good. you're 90% there with minimal cost.
2. Use a pour over method. Boiling water and steeping your coffee using a french press or aero press, a mikita filter, or chemex greatly reduces the acidity in the coffee. Percolated coffee that just sits in the pot denatures all day and gets more acidic the longer it sits on that burner.
3. Dave doesn't exercise. He swears by this. He's in shape, he relentlessly follows this diet (his own) and does 45 minutes of exercise per month. I do more in a week than he does in a year. The primal method of the carb sweet spot of 100-150 a day seems to help me tremendously. If I don't have any carbs I just get into a state of fatigue where I don't feel like my muscles are repairing and my sleep pattern goes to garbage. I now disagree with him on this point, but who am I, certainly not a scientist with a major company.
4. I lost 23 pounds in less than a month on this low carb approach. Picking up the primal approach in the last two months and going more mainstream (I guess you call it that) Paleo, my weight has sort of baselined. Although now I'm happy with it because every week when I lift heavy things and do my other work outs I can see more definition in every area of my body. My wife has commented on it too which is a HUGE plus.
So bottom line:
I would try to do the BP routine without buying anything. Just eat primal, and if you want to start your day off with some quick absorbing fats then do the coconut oil and butter in the morning. Make sure you use a blender and then eat "normal" the rest of the day. I'm a fan of exercise, so I would subscribe to that a couple times a week and get some well timed primal carbs during the right windows of time before and after your work outs.
Today I started with a cup of coffee, butter, MCT oil, and a couple wedges of home made almond paleo bars. I loved it. For lunch I'm going to have some more protein after my workout and a ton of leafy greens. yum.
Living the dream - One life at a time!