Benefits Of Vitamin C And Food Sources Abstract Experts says Vitamin C is one of the safest and most useful or effective nutrient, it helps to increase our immune power, fulfill our various health supplements, cures the cardio-vascular diseases, prenatal health problems, cancer, stroke condition, various types of skin diseases, or eye problems. Normal intake level for vitamin C is 2000mg per day for an adult is very beneficial. Vitamin C has achieved great attention with various health benefits, higher