This is the first time I take spirulina, I directed that choice on this article because it is healthier, without added product. I recommend you to be progressive in taking these tablets for from the first day, you could not sleep in it so much fucks the potato (I had yet took two lunch on 1st day)! So take a tip on day 1 (2matin) then 2nd day (2 morning 1midi) and Day 3 (same dose) and Day 4 (2matin-2 pm) .. Go there gradually! then if that's not enough yet but personally you continue 4cp per day are enough for me and I have more recurrent fatigue, I sleep better, and above all I have a hell of fishing !! and in addition, he loses appetite :)