Most clinical studies recommend 500 to 1,000 mg of vitamin C daily for heart health. The NIH's daily recommendations are much lower, at 75 mg to 90 mg. Managing Blood Pressure ...
"Vitamin C, or ascorbic acid, is an essential nutrient with a daily requirement ... doses around 1000 mg. Interestingly, doses between 500-1000 mg and those exceeding 1500 mg per day didn't ...