A 2026 study of 110 Hispanic children in Northern Virginia found that eating animal-based foods like burritos, cheese, fish, and beef was linked to higher levels of PFAS chemicals in their blood. According to Gram Research analysis, children who participated in school lunch programs had lower PFAS exposure, and U.S.-born children had lower levels than those born outside the country. PFAS are toxic chemicals that don’t break down in the environment and accumulate in the body over time.
Researchers studied 110 Hispanic children in Northern Virginia to understand why they might be exposed to more PFAS, which are toxic chemicals that don’t break down in the environment. According to Gram Research analysis, the study found that eating certain animal-based foods like burritos, cheese, fish, and beef was linked to higher levels of PFAS in children’s blood. However, kids who participated in school lunch programs and were born in the U.S. had lower PFAS levels. This research shows that what families eat and their social circumstances can significantly affect how much of these harmful chemicals children are exposed to.
Key Statistics
A 2026 cross-sectional study of 110 Hispanic children in Northern Virginia found that PFOS and PFOA were the most common PFAS chemicals detected, with median blood levels of 2.73 and 1.29 nanograms per milliliter respectively.
Children who consumed more burritos had blood levels of the PFAS chemical PFHpA that were 1.45 nanograms per milliliter higher per increase in consumption frequency, according to a 2026 study of 110 Hispanic children.
In a 2026 study of 110 Hispanic children, participation in free or reduced-price school lunch programs was associated with 0.61 nanograms per milliliter lower levels of the PFAS chemical PFHpA.
A 2026 study of 110 Hispanic children found that fish consumption increased the odds of detecting the PFAS chemical PFBS in blood by 55 percent compared to lower fish consumption.
The Quick Take
- What they studied: How the foods Hispanic children eat and their family circumstances affect the amount of PFAS chemicals found in their blood.
- Who participated: 110 Hispanic children between ages 4 and 11 living in Northern Virginia. Parents answered questions about what their kids ate and family background information.
- Key finding: Children who ate more animal-based foods like burritos, cheese, fish, and beef had higher levels of PFAS in their blood. Kids using school lunch programs had lower PFAS levels.
- What it means for you: If you have Hispanic children, being aware of PFAS sources in food and considering school meal programs may help reduce exposure. However, this is one study, and more research is needed before making major dietary changes.
The Research Details
Researchers recruited 110 Hispanic children ages 4 to 11 from the Northern Virginia area for a study called VALE (Vidas Activas Familias Saludables). Parents filled out detailed questionnaires about what their children ate, family income, where they were born, and how long they had lived in the United States. The children had their height and weight measured, and blood samples were taken to test for 12 different types of PFAS chemicals. The researchers used statistical methods to figure out which foods and family factors were connected to higher or lower PFAS levels in the children’s blood, while accounting for other factors that might affect the results.
This research approach is important because it looks at real-world factors that affect Hispanic children specifically. PFAS chemicals are found in many everyday products and foods, but we don’t know much about which foods and family situations put Hispanic children at higher risk. By studying this specific population, researchers can understand the unique dietary and social factors that matter for this community.
This study has some strengths: it measured PFAS directly in blood samples using advanced laboratory methods, and it looked at a specific population that may be at higher risk. However, the study only included 110 children from one region, so the findings may not apply to all Hispanic children everywhere. The study is cross-sectional, meaning it captured a snapshot in time rather than following children over years, so we cannot prove that foods caused the PFAS levels.
What the Results Show
The two most common PFAS chemicals found in the children’s blood were PFOS (at a median level of 2.73 nanograms per milliliter) and PFOA (at 1.29 nanograms per milliliter). When children ate more burritos, their blood levels of a PFAS called PFHpA increased by about 1.45 nanograms per milliliter. Cheese consumption was linked to a 0.87 nanogram per milliliter increase in PFHpA. Fish and beef consumption were associated with higher odds of detecting another PFAS chemical called PFBS in the blood. Children who participated in free or reduced-price school lunch programs had lower levels of three different PFAS chemicals compared to children not in these programs.
Children born in the United States had lower levels of PFHpA and were less likely to have detectable PFBS in their blood compared to children born outside the U.S. When mothers had lived in the United States longer, their children were less likely to have detectable PFBS. These findings suggest that acculturation, or how long families have been in the U.S., may influence PFAS exposure through dietary and lifestyle changes.
Previous research has shown that PFAS chemicals are widespread in the environment and food supply, but few studies have looked specifically at Hispanic children or examined culturally relevant foods. This study adds important information by showing that traditional foods like burritos and cheese, which are common in Hispanic diets, may be sources of PFAS exposure. The finding that school meal programs are protective is new and suggests that institutional food sourcing or dietary patterns associated with these programs may reduce exposure.
The study only included children from Northern Virginia, so results may not apply to Hispanic children in other regions. The study measured PFAS at one point in time, so we cannot determine if PFAS levels changed over time or if foods directly caused the exposure. The study relied on parents remembering what their children ate, which can be inaccurate. The sample size of 110 is relatively small, which means some findings may not be statistically strong. The study cannot prove cause and effect, only associations between foods and PFAS levels.
The Bottom Line
Moderate confidence: Consider reducing consumption of animal-based foods that showed associations with higher PFAS, particularly if you have concerns about chemical exposure. Moderate confidence: If eligible, participation in school lunch programs may be beneficial for reducing PFAS exposure. Low confidence: More research is needed before making major dietary changes based on this single study. Consult with a healthcare provider about your family’s specific situation.
Hispanic families with children ages 4 to 11 should be aware of these findings. Parents concerned about environmental chemical exposure would find this relevant. Healthcare providers working with Hispanic communities may want to discuss PFAS exposure with families. Environmental health advocates focused on health disparities should pay attention to this research.
If dietary changes were made, it could take weeks to months to see changes in blood PFAS levels, since these chemicals accumulate in the body over time. Benefits from school meal program participation might be seen over a similar timeframe. Long-term exposure reduction would require sustained dietary and lifestyle changes.
Frequently Asked Questions
What are PFAS chemicals and why should I worry about them in my child’s blood?
PFAS are toxic chemicals used in many products that don’t break down in the environment or body. They accumulate over time and have been linked to health problems including liver damage, thyroid disease, and immune system issues. This study found them in Hispanic children’s blood, suggesting dietary exposure is a concern.
Which foods have the most PFAS that I should avoid giving my kids?
This study found associations between higher PFAS levels and eating burritos, cheese, fish, and beef. However, this doesn’t mean you must eliminate these foods. Instead, consider varying your child’s diet with more plant-based options and choosing school meal programs when available, which showed lower PFAS exposure.
Can school lunch programs really reduce PFAS exposure in children?
According to this 2026 study, children using free or reduced-price school lunch programs had lower levels of three different PFAS chemicals. The exact reason is unclear, but it may relate to food sourcing, preparation methods, or overall dietary patterns associated with these programs.
Does being born in the United States affect PFAS levels in Hispanic children?
Yes, this study found that U.S.-born Hispanic children had lower PFAS levels than children born outside the country. Longer maternal residence in the U.S. was also associated with lower PFAS. This suggests dietary and lifestyle changes over time may reduce exposure.
Should I change my family’s diet based on this one study?
This study provides useful information but is not definitive proof. Before making major dietary changes, consult your pediatrician or a registered dietitian who can consider your family’s specific situation, cultural preferences, and nutritional needs alongside these findings.
Want to Apply This Research?
- Track weekly consumption of animal-based foods (burritos, cheese, fish, beef) and note any changes in energy levels or health markers over 8 to 12 weeks.
- Log daily food intake focusing on animal-based foods, and set a goal to gradually increase plant-based meal options while monitoring how you feel.
- Create a food diary that categorizes meals as animal-based or plant-based, track weekly totals, and reassess every month to identify patterns and opportunities for dietary shifts.
This article summarizes research findings and is not medical advice. PFAS exposure is a complex environmental health issue. Before making dietary changes for your child, consult with your pediatrician or a qualified healthcare provider who can evaluate your family’s individual circumstances. This study was conducted in Northern Virginia and may not apply to all populations. Research on PFAS health effects is ongoing, and recommendations may change as new evidence emerges.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.