There is literally no amount that is not bad for you. With this much discussion you can easily go research on the internet and see this. Takes like 5-10 minutes to learn your answer. You've ingested ALOT of lead in your life and your okay. The problem is you cant say lead is ok because it actually does harm your body. IF you wanted to raise the smartest baby in the world i think then you might consider looking into lead consumption but if you just want a healthy baby like every other human in this world then you would probably prioritize them eating veggies vs concerned about lead content of said veggies.