Strictly speaking, onion is fine for a low lectin diet but I just noticed I was having a hard time digesting raw purple onion in particular. I can eat cooked onions OK it seems, but hopefully once the gut is healed raw onions will be fine because I really like them in all sorts of things.

In a perfect world, or if you had MS or severe RA, only pastured meats should be consumed since conventional meat is fed corn and soybeans - high in lectins. But, those are expensive. IMHO it's more important to cut out nightshades and beans and other legumes like peanuts as well as most starches that aren't resistant ones (like sweet potatoes) until the gut is healed. Then you can add back in beans that were cooked in a pressure cooker and tomatoes with the skin and seeds removed. Goat cheese is fine, as is most cheese that comes from France, Italy, and Switzerland - because it's nearly always from A2 cows.

Fortunately, pistachios and walnuts (and many other true nuts) are fine.