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The HHRA team had a very successful trip to Ames for the public Health Conference of Iowa where ED Chuck Benbrook and board member Audrey Tran Lam co-hosted a session on the implications of rising herbicide exposure to public health.

Archived HHRA News Posts
  • HHRA Urges SCOTUS to Preserve a Strong Role for States in Pesticide Regulation

    Press Release Amicus Brief Highlights “Unintended Consequents” If the Court Rules in Favor of Bayer/Monsanto and the Pesticide Industry HHRA warned the Supreme Court that “the effectiveness of FIFRA [federal pesticide law] rises and falls on the fluidity and coherence of state plus federal contributions to labeling” in an Amicus Brief submitted today. The Court is scheduled to hear oral arguments April 27th on a controversial pesticide preemption case that could make it harder for citizens to sue pesticide manufacturers when one of their products does not work as claimed, or triggers an adverse health outcome. Preemption would also dramatically reduce the role states are currently playing in pesticide regulation, while placing new burdens on EPA at a time the agency is dealing with steep budget cuts. “Something has to give, and here in Iowa, we fear it will be public health and environmental quality,” warned Audrey Tran Lam, an HHRA Board member and Director of the Pesticides and Public Health Working Group at the University of Northern Iowa. If the Court rules in favor of Bayer/Monsanto, pesticide registrants and the EPA will determine what risks are acceptable and how pesticides can be used in farming and non-agricultural settings. “Pesticides are invaluable tools for managing pest risks to agriculture and public health,” reports Dr. Thomas Green, chair of HHRA’s Board of Directors. “Pesticide use can also generate risks. I’ve spent my career working with all sectors to reduce pest management risks and optimize benefits. Tremendous progress has and continues to be made. However, history is littered with examples of where manufacturers developed products and regulators approved uses that later were discovered to carry unacceptable risks. At times like today when the pesticide industry has so much clout at EPA, shielding the industry from legal action, a key disincentive for overlooking risks, does not bode well for farmers, people who handle and apply pesticides as part of their jobs, the public or the environment.” For years the pesticide industry has sought changes in pesticide law to shield registrants from liability and litigation when a product fails to work as advertised or makes someone sick. The Department of Justice has joined the pesticide industry in arguing before SCOTUS that as long as an applicator follows the instructions on an EPA-approved label, the manufacturer should not be liable for a failure to warn about adverse effects or economic losses. “If the Court accepts the industry’s argument, all registrants will have to do is gain EPA approval of bare-bone labels that lack needed warnings and requirements,” explained Dr. Charles Benbrook, HHRA founder and strategic advisor, and author of the Brief. HHRA points out to the Court the two major reasons why the industry is so determined to put a liability shield in place. First, advances in science are connecting the dots between pesticide exposures and disease outcomes. And second, since the 1990s, the pesticide industry has become increasingly able to influence how senior officials in the Office of Pesticide Programs (OPP) “balance” pesticide risks and benefits. The Brief’s “Summary of Argument” section closes by stating: “The Court should not solve Bayer/Monsanto’s near-term, litigation-driven fiscal crisis via expanding the scope of preemption, thereby creating more consequential problems that will plague U.S. farmers and pest managers, the general public, and regulatory officials for many years, if not decades.” For More Additional materials on preemption are on HHRA’s website, including March 2025 HHRA comments to EPA on a preemption petition submitted to the agency by 11 Attorneys General. To schedule an interview with Dr. Thomas Green or Dr. Benbrook, email info@HH-RA.org or call 262-844-0200.

  • Heartland Health Research Alliance and Swette Center Comments Submitted to the FDA Docket FDA-2025-N-1793

    Defining and Delineating Ultra-Processed Foods  These comments are submitted on behalf of the Heartland Health Research Alliance (HHRA), a non-profit organization conducting research on the impacts of farming systems on the environment and public health (hh-ra.org), and the Swette Center for Sustainable Food Systems at Arizona State University. HHRA and the Swette Center submitted comments dated July 15, 2025 to the FDA on its proposed front-of-package nutrition labeling system. In February, 2023, HHRA and the Swette Center submitted comments to the FDA on the definition of “healthy” food and related measurement challenges. In our 2023 comments, we recommended adoption of novel metrics to quantify food nutritional quality as part of an analytical system called NuCal; two co-authors of these comments (Benbrook, Mesnage) published a paper describing NuCal in 2024. The co-authors of these comments on ultra-processed foods are (alpha): Mr. Dan Barber, Chef and Co-Owner, Blue Hill Restaurant at Stone Barns. Dr. Charles Benbrook, former Executive Director of HHRA. Anne Biklé, science writer who, with David Montgomery, authored What Your Food Ate: How to Heal Our Land and Reclaim Our Health (2022). Dr. Asa Bradman, University of California, Merced and member of the HHRA Board of Directors. Dr. Steven Chen, Chief Medical Officer of the Recipe4Health, a food-as-medicine program in Alameda County, California. Dr. Donald R. Davis, retired nutrition scientist who has conducted extensive research on historical changes in food nutrient content. Mr. Alan Lewis, Vice President for Government Affairs, Stakeholder Relations, and Organic Compliance at Natural Grocers. Dr. Kathleen Merrigan, Executive Director of the Swette Center, Chair of HHRA’s Public Policy Advisory Committee, and former USDA Deputy Secretary. Dr. Robin Mesnage, scientist conducting genomics and metabolic research on food safety and nutritional quality at the Buchinger Wilhelmi Clinic in Uberlinger, Germany. Mesnage and HHRA science advisor. Dr. David Montgomery, professor of geomorphology at the University of Washington in Seattle, and expert on how soil health impacts food nutritional quality and human health. Ms. Mary Purdy, MS, RDN, Managing Director of the Nutrient Density Alliance and Adjunct Faculty at the Culinary Institute of America. Mr. Bob Quinn, PhD, founder of Kamut International, and an organic farmer in Montana who has recently founded a regenerative organic research institute on a portion of his farm. Dr. Adam Shriver, Director of Wellness and Nutrition at the Harkin Institute at Drake University in Des Moines, Iowa. Dr. Andrew Smith, Chief Scientific Officer of the Rodale Institute. Mr. Tom Willey, retired California organic farmer and host of the “Down on the Farm” podcast. Access to multiple documents drawn upon in the preparation of these comments is provided via hyperlinks in the text. Citations to published papers appear in “References”.   Table of Contents I. Summary and Key Recommendations. II. Why Define, Measure, and Label Food by Degree of Processing? A. Evidence Linking Processed Foods to Adverse Public Health Outcomes Has Not Been Matched by Efforts to Reverse the Decline in Food Quality and Safety. B. Classifying Foods by Degree of Processing. 1. Food-as-medicine Programs Bring New Focus on Food Nutritional Quality. 2. A Key Challenge Confronting the FDA and USDA. C. Terminology and Focus. III. Taking Account of Food Manufacturing in Delineating the Degree of Processing A. Key Concerns and Metrics Needed to Identify UPF. 1. What’s Lost? 2. Nutritional Quality Should be the Bedrock Metric. 3. What’s Added? 4. New Risks? B. Classifying the Degree of Processing in Food Products. 1. Generic Food Processing Classification Criteria Applicable to All Products. 2. Food Group Specific Criteria Needed in Classifying the Impacts of Processing. C. Vetting the System to Achieve Continuous Improvement. IV. Questions Posed by the FDA-USDA. A. Supporting Cohesive Research, Continuous Improvement, and Consistent Guidance to Consumers B. Responses to Questions 1-5 Posed by the FDA-USDA. V. Conclusions and Recommendations. References.   I.             Summary and Key Recommendations Improving the safety and nutritional quality of ultra-processed foods (UPF) is among the most promising — and attainable — options to enhance the health of the American public. Doing so will require major changes in policy, technology, consumer awareness, and market dynamics. Manufacturing and selling unhealthy UPFs is profitable and accepted in the US. For this reason, chronic diseases rooted in unhealthy food and dietary patterns, including metabolic syndrome, Type 2 diabetes, and cardiovascular disease, are undermining well-being. Health costs will also continue rising. We commend the FDA and USDA for seeking guidance on how to define and classify foods based on the impacts of processing. Government action will be essential to achieve meaningful improvements in public health. Left unchecked, current trends will exacerbate already serious health, policy, and fiscal crises. To turn the tide, manufacturing safe and nutritious UPF must become the most profitable option for the food industry. Forging consensus on how to define and measure the degree of processing is an essential first step. We argue this must be done through the lens of public health. Metrics used to measure the degree of processing in a finished food product must be grounded in changes in the nutritional quality and safety of food products, and ultimately, impacts on public health outcomes. Defining and classifying mostly whole and fresh foods is straightforward. The degree of processing in a finished processed food product, and its impacts on public health, should be determined as a function of: Nutrients and health-promoting phytochemicals that are lost or altered as a result of processing, What is added in recipes, or via processing technologies, and Whether, and to what extent, milling, oil extraction, other processing methods, and cooking creates new, or exacerbates existing, food safety hazards. The foundational metric should be the percentage loss of nutritional quality as a result of processing. Such a calculation should be made across all individual nutrients with a Recommended Dietary Allowance, or an equivalent daily intake benchmark required to sustain good health. The total amount of each essential nutrient in the raw ingredients required to manufacture a serving of processed food should be measured, just as the food industry now does for nutrients featured in […]

  • Eaters Deserve More Complete Information About Nutrition and Health Impacts on Food Labels  

    Multiple lines of evidence point to consumer food choices as major contributors to diet-related disease, and poor health and fitness. In a peer-reviewed journal article published today, authors Chuck Benbrook and Robin Mesnage cite studies indicating that “Some 90% of the estimated USD 4.3 trillion in annual health care costs in the US is triggered or made worse by poor food quality and diet-related disease.” Benbrook is the founder and former executive director of the Heartland Health Research Alliance (HHRA). The authors recommend novel metrics on both the nutrient density of food, and how to more accurately and usefully characterize the degree of food processing and its impacts on public health. The article is open access in the journal Foods and entitled “Enhanced Labeling to Promote Consumption of Nutrient Dense Foods and Healthier Diets.” The core nutrient density metric is a ratio: the percent of daily nutrient needs satisfied by a serving of food relative to the percent of a 2000 calorie daily diet taken up by the serving of food. This single metric is unmatched in comprehensively reflecting the nutritional quality of food. A graphic option to convey the metric on packaging is presented in Figure 3 in the new paper: A novel graphic is presented in Figure 5 to which integrates both the nutrient density and food processing metrics and graphics in a single graphic, shown below. The impacts of ultra-processed food (UPF) on public health outcomes is among the hottest topics in nutrition, medical, and public health journals, and media coverage on food quality and health outcomes. At the request of the journal, the authors developed a video abstract that explains the paper’s goals, methods, and key findings and recommendations. The authors conclude their paper with these observations: Transparent and accurate food product-specific ingredient and nutrient composition data should determine the content of nutrition health labeling. Efforts to soften the message should be resisted in light of the overwhelming need for new food labels that help bring about substantial improvements in food nutritional quality and dietary choices. Benbrook and Mesnage’s paper builds on public comments HHRA submitted in response to the US Food and Drug Administration (FDA) proposed rule in 2023 to update the definition of the term “healthy” on food labels. The proposed role would require foods labeled “healthy” to contain minimum amounts of foods recommended by USDA’s Dietary Guidelines, and to limit saturated fat, sodium, added sugar and other less healthy nutrients. Entitled “Food Labeling: Nutrient Content Claims; Definition of Term `Healthy’”, the comments recommended new  nutrition/health messaging on the front of food packaging. Co-authors of comments included the chair of HHRA’s Policy Advisory committee Dr. Kathleen Merrigan, HHRA science advisors, and other experts working on how changes in farming systems and technology can increase the nutritional quality of food: Dr. Hannah Flower, Dr. Donald R. Davis, Dr. David Montgomery and Anne Biklé. In the comments, the authors introduced “NuCal” as a name for their new system. Resources HHRA February 2023 comments to the FDA. Benbrook and Mesnage (2024). Enhanced Labeling to Promote Consumption of Nutrient Dense Foods and Healthier Diets, Foods. https://doi.org/10.3390/foods13213377 Video Abstract: “Enhanced Labeling to Promote Consumption of Nutrient Dense Foods and Healthier Diets”

  • HHRA Weighs in on Key Pesticide Issues Under Review by the National Organic Standards Board

    HHRA and ORG-Tracker, represented by Dr. Chuck Benbrook and Dr. Brian Baker, submitted comments to the Agricultural Marketing Service at the USDA in advance of the National Organic Standards Board (NOSB) meeting in Portland, Oregon, from October 22nd to 24th, 2024. Drs. Benbrook and Baker will both attend the conference and deliver public comments. ORG-Tracker is a project carried out by HHRA. It aggregates pesticide residue data from inspections of organic farms carried out by certifiers. The tables generated by ORG-Tracker utilize the results of certifier testing to compare residue frequency and risk levels to food produced on conventional farms. The team is working to more effectively highlight gaps and challenges faced by certification agencies to answer questions like What crops should we be testing, and where? Is a pesticide residue found in an organic sample likely caused by accident, pesticide drift, or an intentional and illegal application? How can we modify organic programs to better mitigate risk? The comments delivered to the USDA discuss risk-based certification, pesticide residue testing, and policies impacting the incorporation of so-called inert ingredients in the biopesticides approved for use on organic farms. They argue for a more rigorous, comprehensive, and health-focused approach to risk oversight. Regarding residue testing, they advocate for more expansive and effective data aggregation to inform consumers and the organics community. Finally, for inert ingredients, they recommend further review of current policy, including increased transparency of ingredients in pesticide products. Thank you to Drs. Benbrook and Baker for your advocacy and hard work!   The three sets of comments are posted on HHRA’s website as part of our policy program: Comments to the NOSB on the Risk-Based Certification Discussion Document Under Consideration During the October 2024 Meeting in Portland, Oregon Written Comments on the NOSB Discussion Document “Residue Testing for the Global Supply Chain” Comments on the Inert Ingredients in Organic Pesticide Products Proposal dated August 13, 2024   Drs. Benbrook and Baker also submitted and presented comments at the Spring 2024 meeting of the NOSB, which are available on HHRA’s Policy and Regulatory Reform page.

  • Dr. Kimberly Yolton joins HHRA board

    Dr. Yolton is a developmental psychologist and epidemiologist serving as Professor of Pediatrics at Cincinnati Children’s Hospital Medical Center. Her interests include exposures and experiences that may alter a child’s developmental trajectory from infancy through adolescence. She collaborates on research projects on typical child development as well as those focused on the impact of exposures to environmental toxicants, opiates and stress during early development.

Better Late Than Never: Farmers, Ag Scientists and the Public Health Community Come Together in Iowa and Pay Tribute to a Sustainable Ag Pioneer

May 11th, 2022
May 11th, 2022
The HHRA team had a very successful trip to Ames for the public Health Conference of Iowa where ED Chuck Benbrook and board member Audrey Tran Lam co-hosted a session on the implications of rising herbicide exposure to public health.

By: Audrey Tran Lam and Chuck Benbrook

“I have been trying to bring together farmers and the public health community in Iowa for my whole career and tonight it finally happened.”

This is what one attendee told the HHRA team at the end of our May 3, 2022 reception in Ames, Iowa.

Our reception was a tribute to sustainable ag pioneer, Fred Kirschenmann. It was sponsored by HHRA, Practical Farmers of Iowa, and the Farming for Public Health program (FFPH) at the University of Northern Iowa. HHRA Board member, Audrey Tran Lam, manages the FFPH and helped organize HHRA’s participation in the 2022 annual Public Health Conference of Iowa (PHCI).

The epicenter of herbicide-intensive weed management in the Heartland seemed the right place to debut HHRA science, and the beginning of the herbicide spray season a fitting time to do so. The pictures accompanying this blog capture the meeting’s good energy and fellowship.

HHRA staff member Grace Koch hanging out at our exhibitor booth in Ames, Iowa.

During the conference a steady flow of public-health practitioners stopped by the HHRA booth and engaged our dynamic duo, Grace Koch and Molly Funk, in dialogue about HHRA and the Heartland Study. Many of these public health professionals had either historic roots in farming, or were farmers themselves. The genuine interest in bringing a public health lens to agricultural practices in Iowa was inspiring.

Interactions at our booth sparked discussions about farming, public health, climate change, soil health, environmental justice and more. We handed out HHRA and Heartland Study materials to public health professionals from all backgrounds and specialties. A bagful of certified organic mini-chocolate bars disappeared as fast as Grace and Molly could replenish the supply!

Many people stopping by our booth shared  personal stories about times they were sprayed with pesticides, or smelled that smell in the air, or wondered whether their water was safe to drink.

Others told us about a family member (or members) or friends with cancer. One woman told us about a farm family she knew in which three members had been diagnosed with the same cancer over a two-year period. They lived on a farm with pesticides in the well water.

At our booth, questions were raised almost non-stop about whether pesticides might be playing a role in some of the health problems that seem on the rise in Iowa. Exposures through drinking water came up over and over.

As important as water is as a route of herbicide exposure, we were struck by the fact that very few people were aware that many Iowans, and most people in farm country, are breathing in air laced with a pinch of volatile herbicides on many days from mid-June through August, and have been doing so since 2017.

HHRA co-hosted a session with Farming for Public Health on herbicide use and exposure in Iowa.

During the HHRA and FFPH co-led concurrent session, the Iowa public-health community was understandably troubled upon hearing some of what we had to say, but many expressed gratitude that Iowa’s #1 industry had made it onto the agenda of their state’s annual meeting of public-health practitioners.

For most of the ~400 people at the May 3-5 meeting, it was the first in-person professional meeting since Covid shut down travel and large gatherings.

HHRA was the “Keynote Sponsor” for the meeting. It was a great investment that provided us the opportunity to introduce HHRA and the Heartland Study to conference attendees at the beginning of each day’s plenary session.

Board member Audrey Tran Lam speaking to the conference during one of the keynote sessions.

On day one, Chuck Benbrook covered HHRA and HS basics and invited all attendees to our reception that evening — the tribute for Fred Kirschenmann.  Chuck also pitched our substantive session Wednesday morning entitled “Iowa-Centric Public Health Challenges in the Wake of Rising Herbicide Use.” And – impressing his staff – he did so in just over his allotted three minutes!

Audrey Tran Lam opened the plenary on day two with a deeper dive on why she was pleased to introduce her Iowa public-health colleagues to the Heartland Study and HHRA science, and why she hoped this would be the beginning of an information-rich and sustained conversation.

A Special Tribute

Fred Kirschenmann and his wife Carolyn (left and center) with HHRA ED Chuck Benbrook at the reception in Fred’s honor.

The highlight of the trip, though, was the reception and tribute for Fred Kirschenmann. Fred is well into his 80s and retired last year after nearly 25 years at Iowa State University. For many of those years, Fred was the Director of the once-world renown Leopold Center for Sustainable Agriculture at Iowa State University, where the conference was held.

Despite the Leopold Center’s many valuable, practical, and appreciated contributions to farmers and farming in Iowa, the political powers-that-be in Iowa incrementally dismembered the Leopold Center, diverting and/or cutting funding and staff positions, ending programs and driving away faculty that wanted to work with the Center. Now, there is no Leopold Center and Iowa State University — and Iowa — is the lesser for it.

Upon Fred’s retirement from ISU there was no celebration honoring his contributions to the institution, to the many students and faculty who worked on Leopold Center projects, and to people across the country and around the world who benefitted for a half-century from Fred’s unselfish sharing of knowledge and insight, connections and wisdom, all deep-rooted and time-tested.

It was an honor for HHRA, PFI and the FPHP to host the tribute for Fred. Many of his friends and colleagues at ISU attended and took advantage of the opportunity to tell Fred how deeply his work and fellowship was valued and appreciated.

In addition to the familiar faces at our reception, there was an impressive turnout from national and local public and environmental health officials interested in learning more about the mark Fred left on sustainable agricultural practices, as well as the many ways in which farming impacts the health of the communities they serve.

Fred’s message at the close of his remarks was classic Fred. There is still much work to do and the only way to tackle it is through new connections, cooperation, and community. Three words that sum up a life’s work well done and also capture, succinctly, why we traveled to Iowa. 

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