There is flavouring and stevia so 1 scoop is probably more than 150 mg, it just contains 150 mg of magnesium
7 am: 7 scoops mag citrate
9 am: 1/2 cup extra virgin olive oil, juice of 1 lemon and 2 oranges
1 pm: 7 scoops mag citrate (750 mg)
3 pm: 7 scoops mag citrate
I also did water and coffee enemas after the 7 am dose and in the evening and the next morning.
I used a castor oil pack and heating pad over my liver during the flush.
Good luck and let me know how it goes,
PS I should add that I really prepped for the flush. For weeks I ate or juiced 4 apples per day (really expensive because I only buy organic). I also drank a bit of apple cider vinegar every day and started drinking Dr. Axe's tonic - just google it or youtube it. I tried to eat as cleanly as possible, but I wasn't that careful. I just never eat junk or processed food in general.
I also was on about day 6 of a Renew Life liver detox kit that lasts 30 days. I'm not sure if that helped things but I wasn't sure I was going to be able to flush and I felt my liver needed a cleanse badly. Hey - maybe that's why my shoulder and neck stiffness and pain subsided! This kit gets great reviews.
I also make sure I'm always regular. Every morning I grind flax seeds, milk thistle, and have a mix of ground dandelion root, burdock, and fenugreek and I drink this down. It's the basics of a product here in Canada called Nutracleanse that works miraculously for people but I make it myself in order to leave out psyllium, which I think can damage intestines.
I also take magnesium every night before bed (citrate and glycinate).
If I still have issues, I use a half capsule of Renew Life Cleansemore, which is an awesome, gentle product - no senna or cascara sagrada, so it's not habit forming.
I'm including all of this because I think one reason I had such an easy time with the flush is because everything was regular. I've heard from others that they get quite sick.