My husband gave up 4 legged animal meat decades ago due to intestinal issues. Dont miss it. Poultry, fish and veggies are our go to items. He would hate to give up cheese though. I only use skim milk and could, if pressed, convert.

However, the Mayo Clinic website only goes into avoiding red meat and closely related items. I would give those up first and see if you can tolerate cheese and milk. Kind of your own elimination program. Each of us is so different. So much easier since you have clues and timeframes to watch for in an allergic reaction.