> They state there is no scientific safe drinking level. They even compare it to radiation. The goal is to establish an unsafe level. it's like saying there is no safe speed to drive a car - sure that's technically true, but worthless to say.

Which is ironic, because, while most people use the "Linear no-threshold" model for radiation, we know that small amounts of radiation are actually beneficial.

The most charitable reason I can think of for why people still use the LNT model is because it's simple and robust. But that doesn't mean that it's the most accurate understanding that we have.