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Sorry to correct you, but Dandelion was used as medicine for centuries and is packed with vitamins (A especially) and B1, B2, C and E as well as a lot of minerals. OP was correct.

I would however advise against eating too much of it because of its notorious laxative effect. :-)

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Packed? A lot? In 100g of dandelion, how much vitamins & minerals do you think there are? I'd be surprised if it was more than 1 gram in total. It's more likely a lot less than 1%.

The fibre is the most beneficial component by mass by a huge margin.

http://nutritiondata.self.com/facts/vegetables-and-vegetable...

I don't think mass is the right way to measure things. I think the correct way to measure things would be by % of daily target. What if you only need 1/100 by mass of some other nutrient vs fiber?

Recommend daily amount is tricky because it may not reflect our most current understanding, but it is a good starting point. For example the RDA of vitamin D is 600IU/day, but there has been evidence that up to 10x this dose continues to provide benefit. While once you have your RDA of other vitamins, any more will just be flushed out of you so it's irrelevant.

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