Right now there isn't much variety of organic fruits cause nobody in America eats the organic, how do I know? Because I'm a produce clerk at my kroger NOBODY EATS Organic. But I eat bananas,pears,apples,grapes,kiwi,oranges. Those are the main fruits i eat just because that's unfortunately all available
Kroger is quite an operation. Wikipedia says, "By revenue, it is the country's largest supermarket chain, second-largest general retailer, and twenty-third largest company."
So when you say that "nobody in America eats the organic" and you base your statement on your own experience working at Kroger's, may I remind you that people who eat organic produce in America don't shop at Kroger's. There are no Kroger's in California, but here we have people who don't shop at Lucky's, Ralph's, Safeway/Von's, and so forth.
but I eat a lot fruit that is high in magnesium?
Nummi was referring to ways in which the body directs available magnesium ("...If gut is harmed it directs magnesium from the body to the gut for healing purposes, leading into deficiency elsewhere in the body, like the head."), absorbs dietary magnesium (...gut absorption rate of nutrients and minerals, especially magnesium, is significantly reduced"), and uses magnesium at the cellular level ("...sugar needs magnesium to be metabolized by the cells").
In your case, that means that you might not be retaining, absorbing, or utilizing the magnesium that is in the food you eat.
To make matters more complex, you might be eating fruit from magnesium-depleted soils, so the magnesium content of your fruit may not match the magnesium content listed on a nutrition table.