Are Runner Bean leaves high in calcium?

Lady Jane gets episodes of bladder sludge - I try and keep her on a low calcium diet, but some foods I'm still unsure of the calcium content.

She loves runner bean leaves, but I'm not sure if they're high, medium or low calcium.

Also strawberry leaves.

Any help would be appreciated, thank you

I don't know exactly, but all leaves are on the high end of calcium. I think the darker the leaf, the higher the calcium, in general.

Thank you