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With nearly 100% accuracy and the ability to select not only sex but a healthy embryo makes it very popular.
Though this is a costly and intensive method of sex selection that uses in vitro fertilization and does biopsies on the embryos before they are returned to the uterus.
This method does not appear to be currently available in the US.
Other Methods of Sex Selection There are other methods of sex selection, including prepregnancy diets to alter the p H balance of your body, timing methods that differ from the Shettles Method, O 12, supplements, and positioning.
The thought process is that the fastest sperm will swim to the bottom.
The sperm is selected for use in an intrauterine insemination (IUI) determined by whether or not you are trying to have a girl or a boy.
Micro Sort®The Micro Sort® process sorts sperm by male and female by a process that measures differences in the DNA.