Wow! We're not deathly allergic to any of the above, we just get mild to terribly sick feeling. Thing is that your body gets used to it over time but that doesn't mean it's not hurting you. So when you remove it completely and add it back in your body can recognize it again as a poison. Many people who go through an elimination diet become more allergic (have harsher responses), since your body isn't use to coping with the allergen. If you have auto-immune issues it's essentially taking energy and immune-system fighting power to combat these foods every time you eat them. So there are lots of benefits to removing them, one being over-all better health. Thanks for commenting!