McDonald’s Big Arch is the unhealthiest burger on their menu

Here’s what’s in the new McDonald’s Big Arch burger and why it has more calories, unhealthy fat, sodium, and added sugars than any other burger on the menu.

Historic California legislation would close food chemical safety loopholes

CA food chemical legislation reform

CA food chemical safety & transparency: legislative outline

A snapshot of the latest research on diet, exercise, and more

Can lifestyle changes reduce metabolic syndrome? Can fish oil help dialysis patients? Can a Mediterranean diet reduce IBS symptoms? We look at those new studies, plus others on caffeine, Alzheimer's, cancer, and more.

How does CA AB 1264 categorize foods?

In September 2025, the California legislature passed a landmark food safety and school nutrition bill—Assembly Bill 1264. AB 1264 is a first-of-its kind law that enshrines a definition of ultra-processed food, or UPF, that integrates nutritional concerns and more comprehensively captures chemical safety concerns. CSPI has compiled a decision tree to explain how the new law will classify foods.

How the food industry secretly influences what we buy

‘What to Eat Now,’ a new book by Marion Nestle, explains how the food industry influences what we buy...and how to find the best food

RE: Inclusion of food safety and nutrition priorities in the FY2027 Executive Budget

New Yorkers are facing growing challenges in accessing safe, affordable, and healthy food. The Center for Science in the Public Interest, a longstanding consumer advocacy organization advancing evidence-based food and public health policy, respectfully urges you to include a targeted package of low-cost, high-impact food safety and nutrition reforms in the FY2027 Executive Budget. These reforms will make foods served through the Universal School Meals Program safer, help protect New Yorkers from harmful ultra-processed foods, and ensure that industry bears the primary responsibility for food safety and transparency. View the resource below to read the memo.

CSPI comment on ultraprocessed foods; request for information

The Center for Science in the Public Interest respectfully submits the following comments on the U.S. Food and Drug Administration, U.S. Department of Health and Human Services, and U.S. Department of Agriculture’s request for information to help develop a uniform definition of ultra-processed foods for human food products in the U.S. food supply. View the resource below to read the comment.

Joint comment on ultraprocessed foods; request for information

We, the undersigned public health and nutrition advocacy organizations, researchers, and individuals, applaud the federal effort to define “ultra-processed foods” (UPF) for regulatory purposes. Many of us are submitting more detailed comments on this Request for Information. View the resource below to read the comment.