| | Diet & Nutrition | Vitamins Does Vitamin C make blood thinner than usual? No, vitamin C does not make blood thinners thinner than usual. Vitamin C is an essential nutrient that does not affect blood clotting mechanisms directly. Vitamins - Related Articles What Are Fat Soluble Vitamins? Calcium Daily Requirement for Healthy Skin What Vitamins Should You Take Every Day? Side Effects of the Transfer Factor The Effects of Excess Progesterone Alfalfa Chlorophyll Benefits How to Compare Vitamin Brands