{"product_id":"vitamin-c-pak-with-quercetin-orange-flavor-30-servings","title":"Vitamin C-PAK® with Quercetin Orange Flavor 30 Servings","description":"\u003ch2\u003eVitamin C with Quercetin Effervescent Powder — Four-Nutrient Immune Stack\u003c\/h2\u003e\u003cp\u003eDr. Mercola Vitamin C-PAK® with Quercetin builds on the foundational Vitamin C-PAK formula by adding quercetin bioflavonoid to the existing vitamin C, vitamin D3, and zinc combination — creating a four-nutrient immune stack that addresses immune function through an additional and scientifically compelling pathway. Quercetin is a plant bioflavonoid with the most extensive published research base of any polyphenol for immune and inflammatory support, with activity across multiple molecular targets including NF-kB, NLRP3 inflammasome, and mast cell stabilization.\u003c\/p\u003e\u003cp\u003eQuercetin and vitamin C work synergistically in two documented ways: quercetin recycles oxidized vitamin C back to its active reduced form (extending vitamin C's antioxidant lifespan), and vitamin C in turn prevents quercetin oxidation and enhances its cellular stability. Most significantly, quercetin functions as a zinc ionophore — it facilitates the transport of zinc ions across cell membranes into the intracellular space where zinc exerts its antiviral immune effects. This quercetin-zinc combination has attracted significant scientific and clinical interest, making Vitamin C-PAK with Quercetin a meaningfully more sophisticated immune formula than the standard version.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVitamin C + Vitamin D3 + Zinc + Quercetin\u003c\/strong\u003e — four-nutrient synergistic immune stack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuercetin as zinc ionophore\u003c\/strong\u003e — drives intracellular zinc delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuercetin-vitamin C synergy\u003c\/strong\u003e — mutual antioxidant recycling and stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffervescent orange powder format\u003c\/strong\u003e — rapid absorption and easy daily compliance\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e30 single-serving packets per box\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNon-GMO, gluten-free\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDissolve 1 packet in 8 oz of water daily, or as directed by your healthcare provider.\u003c\/p\u003e","brand":"Dr. Mercola","offers":[{"title":"Default Title","offer_id":51252270858542,"sku":"000000000300095940","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/3297\/1822\/files\/515x515-0008952-vitamin-c-pak-with-quercetin-orange-flavor-30-servings.png?v=1779658440","url":"https:\/\/www.drmattgianforte.com\/products\/vitamin-c-pak-with-quercetin-orange-flavor-30-servings","provider":"Dr Matt Gianforte","version":"1.0","type":"link"}