After searching information on the net, I throw myself into the water and controls the Book DR François Papa. When playing, I'm surprised that bcp of online spanning about it (although in mentioning the name of the doctor) does not seem to have read his book .... Some people "believe", others "do not believe": but in any case it is not a miracle cure to make sure to have a boy or a girl as you like. Personally, mother of two boys, I was tempted by reading this book and my eating habits correspond "to the boy regime." If the idea of a third we tried, yes, I think I'll try the "daughter diet", but as said in my title, take the laid back ... The failure rate is low ( 13% if I remember correctly) when the diet is respected without any gap, but there is! I think that is the worst idea is to follow one or the other regime in the belief that it will bring a little boy or a little girl exactly according to the wishes of the parents. I played the game and I noticed the foods I should eat to promote the birth of a daughter and indeed, my diet is messed up. From there to follow it to the letter ... Also, read the whole book and do not stop at food chart: sometimes certain information about forbidden foods and authorized for such a system are "dropped" outside this framework. In short, a book to read, a system test, but still, with hindsight (that is not a exauceur wishes!)