Originally Posted by
atomic sagebrush
I don't think the "boy friendly" diet matters as much for DH. That's because the reason swaying works is because your body needs more and higher quality nutrients to sustain a boy pregnancy and also because in nature, mammal mamas tend to raise the babies together in big groups while the dads are more removed from the situation (and may not even be on the scene). So your living conditions, which your body uses diet to judge, has much more of an effect on your baby's chances of survival/reproduction than your DH's do. Your body doesn't know that we live in a world with grocery stores and a nuclear family, it still thinks we're on the savannah - and on the savannah, the mamas who are in submissive roles and/or get the least access to good foods have more of a chance of passing down their genes to the next generation if they have daughters rather than sons. And this is true even in animals/humans that live in a harem, where the babies are all fathered by the same dad!!
The thing that sways in males is related to sperm count. Optimal sperm count goes hand in hand with high testosterone and good physical condition/large size, so in males, optimizing sperm count is what sends that signal that their male offspring are a good "bet" for their genes. So while eating a boy-friendly diet can certainly help with that, a guy can eat a boy-friendly diet all day long and if your sperm count is low because of other reasons (aka regular or special cigarettes or being overweight) that's what sways.
Long story I know but nutshell version - being overweight sways a lot more for a guy than the boy-friendliness of his diet because being overweight can lower his sperm count. On the other hand, boy-friendliness of diet sways more in a woman because a mother's diet is more indicative of the environment her offspring will be born into. (hope that makes sense?!?)