D
Of course it is true, that is how people die of overdoses, sometimes deliberately.
We can die eating too many oranges, carrots, meat, or sugar. We can die eating too much anything, because our body takes out whatever is in what we eat to use.
And on the other side, poison is only poison if eaten enough of it to cause the damage. Russian Sage is poisonous, but we didn't know that until after a summer of eating it. (No damaged. Thought it was just another sage, so used it as an herb.) Poison ivy causes me no problems because I haven't been around it to get the allergic reaction. (Also, allergy, not poison. Only poison, if it causes serious damage.) Even Datura isn't quite as poisonous as it is assumed. It used to be used to knock people out for surgery, (like amputating a limb. We're talking Dark Ages.) Carrot leaves are poisonous, and yet very few die from them, because you have to eat enough for it to kill you.
The EXACT same deal with prescription drugs the vast majority of the time, however, "no one died" makes a lousy headlines so people like inundating themselves with minutiae and then pretend it IS the headline!
The "prescription drugs kill thousands" responses in this thread should have been added to the Conspiracy Theory forum, not the Bible Discussion forum. (And then again, so should this thread.)