Analysis
21st Century C provides 250 mg of Vitamin C from ascorbic acid, buffered with 140 mg of calcium carbonate. This combination helps to neutralize some of the acidity of Vitamin C, potentially making it easier on the stomach for some individuals, though it's not a fully buffered ascorbate form.
Its main appeal lies in its extremely low price per serving, making it a highly accessible option for consistent daily intake of foundational Vitamin C and a small contribution of calcium. This product is well-suited for those seeking basic, budget-friendly supplementation.
Pros
Exceptionally low price per serving, making it highly economical for daily use. Provides a moderate dose of 250 mg of Vitamin C. Includes calcium carbonate, which can help buffer the acidity of ascorbic acid. Very high number of customer reviews, indicating widespread popularity and acceptance. Tablet form is convenient for easy daily consumption.
Cons
The Vitamin C is ascorbic acid, which might still be acidic for very sensitive stomachs compared to fully buffered ascorbates. 250 mg is a relatively low dose of Vitamin C if seeking higher immune or antioxidant support. The 140 mg of calcium is too low to be considered a primary calcium supplement.
Warnings
Individuals with sensitive stomachs may still experience mild discomfort with ascorbic acid, even when buffered. This product is not formulated for high-dose Vitamin C needs. Ensure the product is stored in a cool, dry place to maintain stability.