Spinach, almonds, rhubarb, and beans are high sources of oxalates, and their role in the human body, particularly the thyroid, is not fully understood.

“oxalates are a big deal what else has oxalate spinach rhubarb nuts especially almonds and kale I mean the list of oxalate vegetables is long and you could make yourself an oxalate bomb easily you just want to have it hey let's have a salad I put some kale and put some spinach I'm gonna do some almonds on it and I'm gonna do a couple other nuts on this Collard collard greens another really popular one right like we have to grow them in our garden and stuff but when you look at that very very high in oxalate oxalates yup and then I think chard as well”