How big of an effect do you think early life nutrition has on IQ? I'll use myself as an example. I was born healthy as fuck and had an objectively perfect nutrition until 10-12 years of age where i developed add(adhd), got fat and depressed due to the school enviroment, which made my diet more limited and higher in calories.
I tested my IQ at 18 years of age and got 92-102. How many points do you think got knocked off due to these factors?

I'm a brazilfag so, bad english.