LE Diet does NOT cause autism. I looked into it extensively over the past 6 years and I believe this to be coincidental and not causal. The rates of autism have skyrocketed in recent years and it is NOT because "women aren't taking prenatals for 3 months before conception". NO ONE took prenatals before conception until very very recently and rates of autism were much lower. Honestly, I kind of wonder if prenatals and highly fortified foods might CAUSE autism!
The "prenatals before conception" thing ignores two huge confounding factors - socioeconomic status/good living conditions/lifestyle (gals who take prenatals for 3 months preconception are a different group than those who do not) and women planning pregnancies and avoiding things that are bad for them (women who weren't taking prenatals may not have been planning a pg and may have been exposed to and doing lots of lifestyle related things that may not have been good for a developing baby). It also included the first month of pregnancy but I have everyone take prenatals beginning at BFP and also recommend DHA supps. The study also found NO difference in autism rates with moms who were taking a regular multivitamin preconception - and most multivitamins have very similar nutrient profiles to prenatals so it is almost certaily NOT the nutrients themselves but some other cofactor.
And there is no differentiation between what nutrient was even causing a connection, if any truly were. It may have been one nutrient in isolation and Autism Speaks believes it's folic (and have a good logical case supporting it http://www.autismspeaks.org/science/...rease-autism-r) I have everyone take folic and many people also take supplemental iodine or use iodine supplements (which also help with brain development).
I know tons of women who did everything in their power to avoid autism in their kids and still have autistic kids. MPO is that a lot of the "studies" that try to shift blame onto mothers are coming from vitamin peddlers and/or people who have a vested interest in shifting blame away from environmental toxins back onto the mother.
Another thing to seriously consider is that older parents also have more autism in their kids so postponing TTC may not help as much as you think.
It is your life and your sway and it is as always up to you to decide these things, but ~to me~ it seems a bit of a step in the wrong direction to postpone conception at 41 to try and prevent birth defects when one thing that has been much much more definitively proven to cause issues with babies, is older parental ages.
I cannot say strongly enough how much I would not recommend anything that I felt to be less than safe.

