{"product_id":"food-sensitivity-test","title":"Food Sensitivity Test - IGA or IGG","description":"\u003cp\u003e\u003cstrong\u003eFood sensitivities\u003c\/strong\u003e are delayed reactions to certain foods that can appear hours or even days after eating them. These sensitivities can develop at any point in life and are often made worse by factors like stress, eating the same foods too often, a lack of variety in the diet, or underlying health issues. \u003cstrong\u003eThis test helps identify which foods may be causing these hidden reactions\u003c\/strong\u003e, so you can make better choices to support your overall health.\u003c\/p\u003e\n\u003cp\u003e\u003c!--StartFragment --\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIgG = systemic, long‑term immune memory\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eIgA = mucosal, front‑line barrier defense\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c!--StartFragment --\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIgA tells you what’s happening at the \u003cem\u003ebarrier\u003c\/em\u003e (gut, sinuses, lungs).\u003cbr\u003eIgG tells you what’s happening in the \u003cem\u003esystem\u003c\/em\u003e (blood, tissues).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFunctional medicine treatment plans shift depending on whether the immune activation is \u003cstrong\u003emucosal‑driven (IgA)\u003c\/strong\u003e, \u003cstrong\u003esystemic‑driven (IgG)\u003c\/strong\u003e, or \u003cstrong\u003emixed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c!--EndFragment --\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!--EndFragment --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!--StartFragment --\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIgA - \u003c\/strong\u003eThink \u003cstrong\u003emucosal barrier + gut immune function\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eLow IgA may indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMucosal immune weakness\u003c\/li\u003e\n\u003cli\u003eChronic gut inflammation\u003c\/li\u003e\n\u003cli\u003eCeliac disease screening issues (false negatives)\u003c\/li\u003e\n\u003cli\u003eHigher susceptibility to respiratory\/GI infections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHigh IgA may reflect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChronic mucosal antigen exposure\u003c\/li\u003e\n\u003cli\u003eGut dysbiosis\u003c\/li\u003e\n\u003cli\u003eFood sensitivities (mucosal-driven)\u003c\/li\u003e\n\u003cli\u003eAutoimmune mucosal activation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIgG - \u003c\/strong\u003eThink \u003cstrong\u003esystemic immune memory + chronic immune activation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHigh IgG may reflect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePast infection or chronic infection\u003c\/li\u003e\n\u003cli\u003eAutoimmune activity\u003c\/li\u003e\n\u003cli\u003ePersistent antigen exposure\u003c\/li\u003e\n\u003cli\u003eVaccination response\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLow IgG may reflect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary immunodeficiency\u003c\/li\u003e\n\u003cli\u003eRecurrent bacterial infections\u003c\/li\u003e\n\u003cli\u003ePoor long‑term immune memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c!--StartFragment --\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow They Work Together\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgA protects the borders\u003c\/strong\u003e (gut, lungs, sinuses).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgG protects the interior\u003c\/strong\u003e (blood, tissues).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf IgA is low, more antigens cross the mucosa → IgG rises as the systemic immune system compensates.\u003cbr\u003eThis is why you often see \u003cstrong\u003elow IgA + high IgG\u003c\/strong\u003e in chronic gut permeability or immune dysregulation.\u003c\/p\u003e\n\u003cp\u003e\u003c!--StartFragment --\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow This Integrates Into a Functional Medicine Plan\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHere’s the exact clinical workflow most practitioners use:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdentify pattern\u003c\/strong\u003e (IgA high\/low, IgG high\/low, mixed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetermine source\u003c\/strong\u003e (gut, food, infection, environment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrioritize treatment\u003c\/strong\u003e (mucosal → systemic → regulatory)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eImplement targeted interventions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRe-test in 8–12 weeks\u003c\/strong\u003e to confirm immune normalization\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis aligns perfectly with your BodyScience model of \u003cstrong\u003eroot-cause, data-driven, personalized care\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003c!--EndFragment --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!--EndFragment --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!--EndFragment --\u003e\u003c\/p\u003e\n\u003cp\u003ePrice $595 + 3% CC Fee = $612.85\u003c\/p\u003e\n\u003cp\u003e\u003cscribe-shadow id=\"crxjs-ext\" data-crx=\"okfkdaglfjjjfefdcppliegebpoegaii\" style=\"position: fixed; width: 0px; height: 0px; top: 0px; left: 0px; z-index: 2147483647; overflow: visible; visibility: visible;\"\u003e\u003c\/scribe-shadow\u003e\u003c\/p\u003e","brand":"BiomeIQ","offers":[{"title":"IgG","offer_id":50690095022391,"sku":"","price":612.85,"currency_code":"USD","in_stock":true},{"title":"IgA","offer_id":50690095055159,"sku":"","price":612.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/7024\/7735\/files\/Food_Sensitivity_Test_-_IGA_or_IGG2.jpg?v=1773948155","url":"https:\/\/www.bodysciencestore.com\/products\/food-sensitivity-test","provider":"BodyScience","version":"1.0","type":"link"}