(in bold) This is also true with breastfeeding and formula feeding.
In what way do you mean? I mean for me the reduction in smoking and drink, plus the back to sleep campaign has shown the reduction.
Whereas we can get 100 children who were BF and 100 children who were formula fed and compare their average IQ, how often they have been to the GP and for what reason, and so on.
ETA and we can make sure they all come from smoke free, tee total homes.
You would have to find sets of parents with identical IQ's and supervise the daily child rearing practices throughout the entire pregnancy and childhood. Also, daycare or no daycare influences a child's immune system. Genetics and susceptibility to illness are factors as well. I am not arguing the benefits; merely saying studies can show trends, but they are not perfect. That's why ALL breastfed children are not healthier than ALL formula fed children, or smarter, or less prone to cancer. There are too many variables in life.
Cancer--What was the water supply like where the child grew up? What kind of toxins were in the soil, air, water that nourised the food the child ate? Etc., etc., etc.
And endless variables with everything else.
The natural antibodies are there and it's the food mother nature designed babies as a first choice. I think we venture into hyperbole of mircacle elixir or liquid gold, you enter territory for backlash. It isn't a perfect science. Neither of my boys have ever had an ear infection. I have seen someone on this very site tell someone they did not believe bottle fed babies never got ear infections. I was stunned the first time I heard of a breastfed baby getting colic. That's how strong the hyperbole can be. My bottle fed babies had colic but they never had ear infections. Who knows why, how or what other variables were at play here.
You shoot for the best possible outcome by providing the best tools that you are able to provide. There's no guarantees in life. A good friend has a 16 year old nephew battling a brain tumor right now. I have no idea if he was breastfed or formula fed, but I know I would be the bitch of the century if I asked or implied blame of any kind.