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Country Life Quercetin and Vitamin D3 500mg capsules

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Country Life Quercetin Plus Vitamin D3 500mg Immune Support 90 Capsules

SKU: 66676

Country Life Quercetin + Vitamin D3 pairs 500 mg of quercetin (a flavonoid found in onions, apples, and capers) with 1,000 IU of vitamin D3 per capsule — a combination popular in immune-support protocols. Quercetin is studied for antioxidant activity and histamine modulation; vitamin D3 supports immune cell function and bone wellness. The 90-capsule bottle is a 90-day supply at one daily. Certified Gluten-Free, Non-GMO Project Verified, Vegan.

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Q: What is quercetin?
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Posted by Customer, Saturday, May 2, 2026 on product Country Life Quercetin Plus Vitamin D3 500mg Immune Support 90 Capsules
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    A: Quercetin is a flavonoid — a class of plant pigments — found in apples, onions, capers, berries, and green tea. It is studied for antioxidant activity, histamine modulation (it stabilizes mast cells, which release histamine in allergic responses), and immune support. Quercetin gained particular attention in immune-support research and is often paired with vitamin C and zinc for synergy.
    Posted by Champ Vita on Saturday, May 2, 2026

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Q: Why pair quercetin with vitamin D3?
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Posted by Customer, Saturday, May 2, 2026 on product Country Life Quercetin Plus Vitamin D3 500mg Immune Support 90 Capsules
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    A: Both nutrients support immune function through different pathways. Vitamin D3 modulates innate and adaptive immunity at a cellular signaling level — adequate D status is widely associated with immune resilience. Quercetin acts as an antioxidant flavonoid and is investigated as a "zinc ionophore" — meaning it may help zinc enter cells. The combination is popular in seasonal immune-support stacks.
    Posted by Champ Vita on Saturday, May 2, 2026

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Q: How much vitamin D3 is in this product?
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Posted by Customer, Saturday, May 2, 2026 on product Country Life Quercetin Plus Vitamin D3 500mg Immune Support 90 Capsules
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    A: Each capsule provides 1,000 IU (25 mcg) of vitamin D3. This is a foundational maintenance dose. People with low blood vitamin D (below 30 ng/mL) often need 2,000 to 5,000 IU daily under medical guidance to reach optimal levels. Get a blood test (25-hydroxyvitamin D) to know your starting point and dose accordingly.
    Posted by Champ Vita on Saturday, May 2, 2026

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