![Does supplemental vitamin C intake amount have an effect on the flu among GrassrootsHealth participants? - GrassrootsHealth Does supplemental vitamin C intake amount have an effect on the flu among GrassrootsHealth participants? - GrassrootsHealth](https://www.grassrootshealth.net/wp-content/uploads/2020/01/Vit-C-Intake-Flu-Chart.png)
Does supplemental vitamin C intake amount have an effect on the flu among GrassrootsHealth participants? - GrassrootsHealth
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Amazon.com: Nature Made Extra Strength Dosage Chewable Vitamin C 1000 mg per serving, Dietary Supplement for Immune Support, 90 Tablets, 45 Day Supply
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Amazon.com: Micro Ingredients Pure Vitamin C Crystal Powder (Water Soluble Vitamin C 1000mg Per Serving), 1 KG (2.2 Pounds), Immune Vitamins and Strong Antioxidant, Pure Ascorbic Acid Powder Supplement : Health & Household
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Nature Made Extra Strength Dosage Chewable Vitamin C 1000 mg per serving Tablets, 120 Count - Walmart.com
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Let Food Be Thy Medicine - A Therapeutic Level of Vitamin C Supplementation as Employed by F .R. Klenner, M.D. (from "The Significance of High Daily Intake of Ascorbic Acid in Preventive
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