Yes, buckwheat is low histamine. It’s actually a seed, and it’s commonly used in East Asia to make noodles or in trendy diners to make crepes and pancakes. Most people on a low histamine diet will tolerate buckwheat just fine, but it is high in both lectins and oxalates, so you should avoid it if you have a sensitivity to either of those. This gluten-free whole grain tastes earthy and savory in either whole or flour form, perfect for making breads or doughs.