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"Poisonous" does not mean deadly. Some manifestations of toxicity are subtle. The dose, as always, determines if a plant is safe source of nutrients or a toxic hazard.

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BRIEF: Can you give me some information about sheep sorrel?

My pharmist looked up all the herbs, and said the sheep sorrel lvs. powder is not safe, (kidneys, liver) can you shed some info on this herb?


Sheep sorrel tastes sour becuse it has a lot of oxalic acid in it. This can be toxic in several ways at high enough doses. When a couple of sprigs are used on a salad for flavor, there is not enough to hurt anybody, but there is a kind of oxalate toxicity that involves the kidneys, but I don't know if that relates to the doses you are contemplating.