Facepalm

Oxalic acid is a normal part of the metabolic process. Your body literally creates it during digestion. Avoiding all oxalic acid intake is a nutrition myth and is basically impossible anyway. Fruits contain it, vegetables contain it, grains contain it. You eat it constantly. This person was already severely unhealthy if they gave themselves NAFLD and kidney stones. More likely the crap peanut butter OP was eating was full of preservatives and icing sugar and OP is probably chronically dehydrated.

A pound or two a week sounds kind of moderate? I mean it's a lot, but if you like peanut butter? I don't eat nearly that much of it on average, but when I buy a 1 pound jar I usually finish it off in much less than a week. It's just an occasional thing for me though.

Are those oxalates only if the PB is getting spoiled or anything like that?

There's always cookie dough as alternative.

Only the peanut butter or also the peanuts themselves? Because I eat an absurd amount of them to pass time

The word "liver" doesn't appear in the Wikipedia article.

wp:Peanut

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As for oxalates:

wp:Oxalate:

Several plant foods such as the root and/or leaves of spinach, rhubarb, and buckwheat are high in oxalic acid and can contribute to the formation of kidney stones in some individuals. Other oxalate-rich plants include fat hen ("lamb's quarters"), sorrel, and several Oxalis species (also sometimes called sorrels). The root and/or leaves of rhubarb and buckwheat are high in oxalic acid.[14] Other edible plants with significant concentrations of oxalate include, in decreasing order, star fruit (carambola), black pepper, parsley, poppy seed, amaranth, chard, beets, cocoa, chocolate, most nuts, most berries, fishtail palms, New Zealand spinach (Tetragonia tetragonioides), and beans.[citation needed] Leaves of the tea plant (Camellia sinensis) contain among the greatest measured concentrations of oxalic acid relative to other plants. However, the drink derived by infusion in hot water typically contains only low to moderate amounts of oxalic acid due to the small mass of leaves used for brewing.[citation needed]

but no mention of peanuts in the main or talk page.

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The doctor might be wrong.

He didn’t say if he ate it with jam or chocolate sprinkles. So not sure if he’s American or Dutch.

“I eat relatively healthy”

“Sometimes my only food in the entire day is peanut butter”

Oh wow 😯. I do like peanut butter but I didn't know about the oxalate content. Now I have to research this. I have this new hobby of cyanotype and the newformula by Mike Ware is what I'm using. It contains oxalates. I never touch the stuff as I apply it. But sometimes I stick my fingers into the developing bath without gloves. Hmm. Well now I'm going to wear gloves. But I also want to read the MSDS.

I used to eat up to a pound a day, and now I'm wondering if I did myself permanent damage. Certainly half a pound a day, minimum, for a year.

They deserve credit for warning everyone about a situation people might not have realized was dangerous. Damn.

A pound of peanut butter per week sounds insane but apparently it's only like 2 cups and I feel like that's an edible amount. It's a lot but if I really got a hankering for some PB I could do that. But then after a week I would be over it. I feel bad for this person though that apparently they think eating nothing but PB is healthy. A human body needs a variety of different foods and nutrients and evidently eating nothing but peanut butter isn't that.

A few people are in here saying a pound or two a week is an unreasonable amount of peanut butter.

But when you buy peanut butter it comes in a 1-2 pound jar. If it's your main source of protein, your favorite comfort food, or you have a poverty pantry, then I could totally see how you might think that one jar a week isn't too bad.

Two pounds of peanut butter is about 6000 calories, or three days of energy for the average person. It shouldn't be the main staple in your diet, as OPs doctor will attest, but it doesn't seem strictly unreasonable.

I wonder how gourmet or homemade "nothing but peanut" butter compares to something like Kraft that's loaded with sugar. Probably still not super great, but hey, maybe it's better. Or maybe it's worse. Eat a variety if you can.

They cannot be eating relatively healthily if peanut butter is their only food for the whole day lol