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SamIchi

macrumors 68030
Original poster
Aug 1, 2004
2,716
137
It does to me, it's almost like when you drink Coke (but I don't drink soda anymore). You know that gritty feeling? What's up with that?
 
It's the acids in the spinach, primarily oxalic acid, the same acid that is in rhubarb leaves. It is said that the gritty or squeaky feeling on the teeth is the combination of the oxalic acid with proteins like milk on the surface of the teeth.

(don't eat 10 pounds of spinach at a sitting, you could give yourself oxalic acid poisoning and get kidney failure. People with kidney disease should be cautious of spinach Rhubarb leaves should not be eaten at all.)

You can get similar tooth effects from Coke and from tea

Coke has phosphoric acid in it
Tea (and oak tree acorns) have tannic acid
 
It's the acids in the spinach, primarily oxalic acid, the same acid that is in rhubarb leaves. It is said that the gritty or squeaky feeling on the teeth is the combination of the oxalic acid with proteins like milk on the surface of the teeth.

(don't eat 10 pounds of spinach at a sitting, you could give yourself oxalic acid poisoning and get kidney failure. People with kidney disease should be cautious of spinach Rhubarb leaves should not be eaten at all.)

You can get similar tooth effects from Coke and from tea

Coke has phosphoric acid in it
Tea (and oak tree acorns) have tannic acid

Thanks for the info :) I wonder if there's anything that counters that stuff.

Wow 10 lbs? Who can eat 10lbs of anything? I had a spinach salad that was about it.
 
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