Minecraft update 1.22 part 1 (of 5) comes out, rhubarb and rhubarb seeds were added

The structure that rhubarb seeds are found will be added in part 2 (scheduled for 2029)

Rhubarb pie will be added in part 4 (scheduled 2032)

It's a mid tier food with worse saturation than chicken

(PDOs granted pre-Brexit continue to be in force, though new ones can't be granted for UK stuff)

No vegetable is really rich in calcium, which is why it is recommended for vegans to take calcium supplements.

After you ingest oxalic acid, it will find calcium in your body, where it is abundant in blood and in the other extracellular fluids (like sodium and chloride, most calcium stays outside the cells).

Too much oxalic acid will form insoluble precipitates of calcium oxalate, i.e. small stones, which may happen to form in undesirable places, from where they cannot be eliminated.

Overall these are plants defense mechanisms. We know they work well as anti bug measures, ruminants have more complex digestive systems to break them down; it's not always clear what prolonged use on humans will cause.

Carnivores advocate against eating oxalates rich food and when you start a diet with no oxalates you will experience some weird symptoms, you can read about oxalates dumping: https://www.doctorkiltz.com/oxalate-dumping

There are plenty of people with "auto immune incurable" diseases who stopped eating vegetables and were relieved of their symptoms.

I personally started experiencing problems after 10 years of a 95% vegan diet and went carnivore, getting rid of a number of weird health issues I couldn't explain.

The trick is to bind the oxalates before they get absorbed in the body and require removal. So making things like traditional creamed spinach (or other things like turnip or collard greens) removes the potential hazard from chronic intake.

Incidentally the whey portion of dairy also seems to chelate the form of vitamin B12 found in plants, making it much more bioavailable. The casein portion of dairy doesn’t seem to have this same effect.

It’s fascinating to see how the preparation for so many traditional foods basically mitigates the sources of low level toxicity issues while increasing nutrient update, when as a “modern” person I tend to look at it from the perspective of taste.

If you eat too much of it, yes. All Oxalis leaves are edible but only in the correct (small) dose.

There are many things which have it, particularly in the wild edible category, and those who have dietary restrictions which limit them to mostly such foods have serious consequences from the presence of it.

I know first hand it can do serious harm.

Do not downplay it.

Treating bees for varroa more takes about 25g of oxalic acid per box of bees. I’d kind of hoped the leaves might have more oxalic, then I could have tried putting rhubarb leaves in there instead of battling fumes, glycerine and strips of paper.

Thinking dairy is the only source of calcium is meme-nutrition like eating bananas for potassium especially when talking about a food already high in calcium.