Understanding the Consumer Reports Findings on One A Day® Prenatal Gummies

Bayer has conducted extensive testing internally and by a third party analytical laboratory which confirmed the level of folic acid meets the level that is stated on the label of One A Day® Prenatal Gummies

Consumer Reports published findings about prenatal vitamin testing, including results for One A Day® Prenatal Gummies. To better understand those findings, Bayer reviewed the testing approach described in the report and conducted additional analysis.

Testing vitamins is not one-size-fits-all. Our review confirmed that the folic acid in our One A Day® Prenatal Gummies meets the amount listed on the label and that any difference in results found by Consumer Reports may have been caused by its improper testing method and sample preparation, not by the actual amount of folic acid in the product.

Why Testing Methods Matter

Testing vitamins is not one-size-fits-all. Different products, such as capsules, gummies, and soft gels, may require different preparation and testing methods. A testing method that works for one product may not work the same way for another. If a method is not designed for a specific product, the result may appear too high or too low.

What Bayer Found

To evaluate the Consumer Reports finding, One A Day® scientists began looking into each step of the analysis to better understand the differences in the results with the third-party laboratory results conducted in line with current regulatory guidance.

Improper sample preparation methods can produce inaccurate folic acid results. This may explain the discrepancy between the two tests. Bayer repeated this testing on five different samples of One A Day® Prenatal Gummies from the same lot under each condition and determined that sample preparation was critical to accurate results. The difference in results may have been caused by how the product was prepared for testing, not by the actual amount of folic acid in the product.

What This Means

This showed that sample preparation is critical. The difference in results was likely caused by how the product was prepared for testing, not by the actual amount of folic acid in the product. In other words, the low reading reflected how the product was tested, not the amount of folic acid in the gummies.

How We Test Our Products

Bayer uses carefully developed and validated testing methods to confirm what is in each product and at what level. Because every product has a unique composition, Bayer evaluates whether each testing method is appropriate for that specific product. This work helps produce accurate, reliable, and consistent results and supports Bayer's commitment to delivering high-quality, safe, and efficacious products people can trust.

Frequently Asked Questions

Do One A Day® Prenatal Gummies contain the amount of folic acid listed on the label?
Yes. When the product is prepared appropriately for testing, the folic acid measured meets the label claim listed on the label.

Why can vitamin test results differ from one report to another?
Different vitamin products require different preparation and testing methods. If a method is not validated for a specific product format (like a gummy versus a capsule), it can produce a result that appears artificially low or high.

What did Bayer find?
We found that the testing method and sample preparation made a meaningful difference in the result, and when the product was prepared appropriately for testing, the folic acid measured met the amount listed on the label of the One A Day® Prenatal Gummies.

Did Bayer review the Consumer Reports findings?
Yes. To better understand the findings, our scientists reviewed the available data from Consumer Reports and used a comparable method to investigate and determine the root cause of the low results. In this investigation, they found that sample preparation was a critical parameter in the analysis of folic acid in our One A Day® Prenatal Gummies and was likely the source of the discrepancy.

Did Bayer repeat the testing?
Yes. We repeated the folic acid testing on all three batches of One A Day® Prenatal Gummies that were tested by Consumer Reports and saw consistent results - the level of folic acid met the amount on the product label.

What does this mean for One A Day® Prenatal Gummies?
Our review showed that the difference in results was caused by the testing method, not by the actual amount of folic acid in the product.

How does Bayer help ensure product quality?
We use carefully developed and validated testing methods for each specific product and evaluate the full testing process to help ensure accurate, reliable, and consistent results. This ensures the high quality, safety, and efficacy of our products.