I find Dr Sten Ekberg's argument on this subject more convincing and more nuanced. It's all about the dosage of these poisons, and each individual's ability to tolerate them. When applying the hormesis principle, we can argue that, when ingested in adequate amounts, ie within one's tolerance levels, they are actually good for you.

Watch: https://youtu.be/IfBlM3HfHKs (from ~16:35 mark)