I agree with the general sentiment and not trusting a word a lobbyist is paid to say, but this is just TV theatrics and absurd drama. Just because he says it’s safe does not mean that he should be able to drink a glass of it. It’s like saying to prove that paracetamol is safe, one must be willing to eat a 500g serving on TV.

Give him food that was grown with the recommended dosage of the fertiliser, and ask him to eat, then we are talking sense.