An analysis of more than 10,000 public-school lunch entrées found animal proteins dominated menus, processed and red meats were widely served, and plant-based main dishes remained uncommon, prompting researchers to call for changes in federal school-meal funding, procurement and nutrition standards.
By yourNEWS Media Newsroom
A nationwide review of public-school lunches found meat and dairy products supplied the primary protein in most entrées examined, with chicken nuggets, processed meats, cheese and other ready-to-serve products appearing frequently across school menus.
The analysis, conducted by Friends of the Earth and the Chef Ann Foundation, reviewed 10,226 identifiable lunch entrées from 45 K-12 public school districts of varying sizes across the United States.
Their report, Beyond the Nugget: The Hidden Health Risks of Industrially Produced Animal Proteins—and the Path Toward Better School Lunches, concluded that federal funding and procurement systems have helped create school menus heavily dependent on industrially produced meat and cheese products.
Read the full report: BeyondNugget_Report_Body_final
Researchers found animal products were the principal protein source in 88% of the entrées examined. Dairy appeared in 53% and cheese in 47%. After peanut or other nut butter and jelly sandwiches were excluded, fully plant-based meals represented 5% of entrées.
Breaded chicken products, including nuggets and patties, were the most frequently served entrée category and appeared on more than half of school days covered by the analysis.
Thirty-nine percent of entrées contained red meat, processed meat or both. At least 28% included processed meat, while 27% included red meat.
Researchers separately selected representative commercially available products from 10 of the most commonly served entrée categories. The products came from companies participating in the U.S. Department of Agriculture’s National Processing Agreement Program.
Seven of the 10 products contained processed meat. Seven contained sodium or potassium phosphates, seven provided more than 400 milligrams of sodium and seven contained added sugars.
Four contained sodium nitrate or nitrite and three contained red meat.
Six of the representative products came from vendors that had experienced significant USDA food-safety recalls during the previous five years, according to the report. Those recalls included incidents involving foreign material, Listeria and Salmonella.
“Chicken nuggets shouldn’t be the defining protein of the American school lunch,” said Chloë Waterman, deputy director at Friends of the Earth and a co-author of the report. “Schools are being asked to serve healthier food while operating within a system that continues to steer them toward industrially produced meat and cheese entrees. We have an opportunity to change that by giving schools the resources they need to phase out processed meat, diversify protein choices, and procure and cook healthier food.”
Researchers Raise Health Questions About Common Entrées
Nearly 30 million children participate in the National School Lunch Program, making the nutritional composition of school meals a significant part of many children’s diets.
The report cited research associating diets high in red and processed meats with greater risks of cardiovascular disease, Type 2 diabetes and certain cancers.
Processed meat is classified as carcinogenic to humans, while red meat is classified as probably carcinogenic to humans. The report also identified sodium nitrates and nitrites used in some processed meat products among ingredients warranting concern.
The researchers additionally discussed possible exposure through industrial animal products to substances that may not appear on food labels, including veterinary drug residues, pesticide residues, PFAS, dioxins and heavy metals. The analysis did not establish that every school entrée contained such contaminants.
“Federally funded school meals must support children’s health, not routinely include foods known to increase the risk of cancer and chronic disease,” said Roopa Kalyanaraman Marcello, DrPH, MPH, the report’s lead author. “The overlap of multiple known and potential risks present in school lunches—which millions of American children rely on over many years of critical growth and development—is a significant yet preventable public health threat. The food served to children in schools must be held to a higher standard.”
Funding and Kitchen Constraints Shape What Schools Serve
The report placed much of its focus on the structure of the federal school-meal system rather than on school nutrition employees.
Researchers said nutrition professionals frequently operate under budget, staffing and equipment limitations that make inexpensive, preprocessed foods easier to purchase and prepare than meals cooked largely from basic ingredients.
Schools receive approximately $4.70 in federal reimbursement for each meal, according to the report. That money must pay not only for food but also labor, equipment, transportation and administrative expenses.
Districts can also obtain food through USDA Foods entitlement funding, but researchers said schools have limited opportunities to use those funds for higher-quality or less-processed alternatives.
Approximately 40% of USDA Foods entitlement spending goes toward processing commodities such as chicken, beef and cheese into products including nuggets, patties and pizza, according to the report.
Combined with persistent shortages of food-service workers and outdated kitchen facilities, the researchers said those incentives can make processed, ready-to-serve products more practical for districts than scratch-cooked meals.
“The science tells us what to do; now we need to make sure all schools have the resources to scratch cook,” said Mara Fleishman, CEO of Chef Ann Foundation. “School nutrition professionals are already working wonders on tight budgets and outdated kitchens. What they need now are policies that make scratch cooking with cleaner, higher-quality ingredients the easy choice in every school, not the expensive exception.”
The organizations also produced a companion resource, Building a Better Lunch Tray, highlighting districts that have moved toward greater scratch cooking and different protein options.
Report Proposes Changes to Federal School-Meal Policy
The authors outlined three broad areas for federal policy changes.
First, they called for increasing schools’ ability to prepare meals from basic ingredients through higher federal reimbursement rates, investment in kitchen equipment, workforce development and expansion of farm-to-school programs.
Second, the report recommended changing nutrition standards by gradually eliminating processed meats and other ingredients identified by the authors as concerns, expanding plant-protein choices and continuing efforts to reduce saturated fat, sodium and added sugar.
Third, researchers proposed changing USDA commodity purchasing practices. Their recommendations include removing processed meats and other identified ingredients from the USDA Foods Commodity Program, gradually reducing purchases from animal-production systems that routinely use antibiotics and growth-promoting drugs, establishing targets for third-party-certified products such as USDA Organic foods, and allowing districts greater flexibility to spend entitlement funds on locally sourced and minimally processed foods.
The report argues those changes would broaden protein choices rather than simply replacing individual menu items.
“As a single mother of three, I am grateful for the school meals my children receive, and I want to trust that those meals are nourishing them,” said Noelle Nyrens, a parent in Iowa City, Iowa. “My youngest daughter has Type 1 Diabetes and Celiac Disease and eats plant-based, so the importance of good nutrition is deeply personal to our family. I know firsthand how challenging it can be to provide quality food on a limited budget, but what we feed our children today will shape their health for years to come. Schools need the resources to serve more fresh, whole foods and diverse, high-quality proteins, and parents should have a voice in the decisions that shape what goes on our children’s plates.”
Researchers Examined Menus and Representative Products
For the full school-lunch analysis, researchers reviewed 10,226 identifiable entrées offered by 45 public school districts representing large, medium and small systems.
They categorized the meals to determine how often red meat, processed meat, dairy products and plant-based entrées appeared and to evaluate the diversity of protein sources.
Public school menus generally do not identify the exact commercial products or complete ingredient lists used for individual meals. Because of that limitation, the researchers selected representative products for 10 commonly served entrée categories from manufacturers participating in USDA’s processing program rather than asserting that those specific products were served by every district studied.
Each representative product was assessed using its ingredient list and nutrition label, documented food-safety issues involving its manufacturer, and scientific literature, federal monitoring and independent testing concerning potential contaminants and chronic-disease risks.
The resulting analysis found a school-food system in which industrially produced animal proteins and cheese remain common, while researchers said broader protein choices and scratch-cooked alternatives face financial, staffing and infrastructure barriers.
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