My neighbor, who is also my cousin, is absolutely anal about food and environmental toxins. It's painful to have a meal with her because she talks non-stop about the "good" and "bad" properties of the food we are eating. I always find delight in informing her about the latest study that controverts the conventional "wisdom" that she so stringently lives by.
Oh, and she is a strict vegetarian who has thyroid, glaucoma, high cholesterol and heart problems.
I completely understand your problem.
I went out to eat with someone last night.
I ordered the Tuna sandwhich. They then told me that it was best "not to eat that" because there is a risk that the Tuna might be bad.
And this wasn't at some 2 bit restuarant either!