California’s Landmark AB 899: A New Era of Transparency in Baby Food Safety

Overview

California has enacted a first-of-its-kind law—Assembly Bill 899—to protect infants from toxic heavy metals found in baby foods. Signed by Governor Newsom in October 2023, the law requires baby food manufacturers to test their products for four heavy metals and disclose the results publicly. This law is the most transparent and enforceable measure of its kind in the United States and could have far-reaching effects beyond California.

Key Requirements of AB 899

1. Mandatory Testing (Effective January 1, 2024)Manufacturers must test final baby food products (excluding infant formula) for arsenic, cadmium, lead, and mercury. Testing must be performed monthly by accredited labs on each “production aggregate,” or batch.

2. Public Disclosure (Effective January 1, 2025)Companies must publish detailed test results for each batch on their websites. This includes product name, lot number, and measured levels of the four toxic elements. The data must remain accessible online for the duration of the product’s shelf life plus one month.

3. Packaging QR Codes and LabelingWhen the FDA has set a recommended limit for any toxic metal, the packaging must include a QR code that links directly to the test results and FDA health guidance. The label must also include a simple statement informing parents that testing data is available online.

Why This Law Matters

A 2021 congressional investigation revealed that many popular baby foods contained dangerously high levels of heavy metals—sometimes dozens of times above safe limits for drinking water. Exposure to arsenic, lead, cadmium, and mercury has been linked to lowered IQ, behavioral disorders, and developmental delays in children.

Until now, there has been no federal requirement for companies to test or disclose heavy metal levels in baby foods. The FDA’s Closer to Zero initiative recommends voluntary limits but lacks enforceable rules. California’s law changes that.

Recent Findings and Industry Pushback

A Reuters analysis of test results from major manufacturers in early 2025 found over 100 products exceeding California’s daily lead exposure threshold of 0.5 micrograms. Brands included Gerber, Beech-Nut, Plum Organics, and Happy Family. While these levels may not violate FDA guidelines, California’s more stringent standards are intended to reflect the latest science on cumulative exposure risks in infants.

Some companies claim compliance through averaging test results across batches—a method that may not satisfy California's disclosure rule, which requires batch-specific reporting.

What Parents Can Do Now

• Read the label. As of 2025, many baby foods sold in California will include a QR code. Scanning it will reveal test results for the batch you’re holding.

• Diversify your baby’s diet. Limit rice-based and root vegetable products, which are more likely to accumulate heavy metals. Offer a wider range of grains, fruits, and proteins.

• Use the resources. Manufacturers are required to make test results easily available. Check their websites for data before purchasing, especially for frequent-use products.

• Stay informed. Other states, including Maryland and Illinois, are considering similar laws. Federal action could follow if momentum continues.

Summary Table

Requirement	Effective Date	Details
Mandatory monthly testing	January 1, 2024	Arsenic, lead, cadmium, mercury
Website disclosure	January 1, 2025	Batch-specific data must be published online
QR code on packaging	January 1, 2025	Required if FDA guidance limit exists

Looking Ahead

California’s AB 899 is more than just a state regulation—it’s a blueprint for the future of baby food safety. As transparency increases and consumers demand cleaner products, manufacturers across the country may soon adopt similar testing and labeling practices. For now, California parents have a powerful new tool to make safer, more informed choices.