New Study says Girl Scout Cookies Test Positive for Glyphosate and Heavy Metals. Can this be a cancer risk?

Why Are Parents Concerned About Girl Scout Cookies in 2025?

Laboratory testing revealed that 100% of tested Girl Scout cookies contain glyphosate and toxic metals, with levels exceeding EPA safety limits. Tests commissioned by GMOScience and consumer groups examined 25 cookie samples from California, Iowa, and Louisiana in December 2024. Thin Mints contained glyphosate levels of 111.07 ppb, while Peanut Butter Patties showed lead contamination of 42.5 ppb. The Girl Scouts of USA, an $800 million cookie enterprise, declined requests to discuss these findings.

• All 25 tested cookie samples contained glyphosate, the active ingredient in Roundup weedkiller
• 96% of samples tested positive for lead contamination, which has no safe exposure level
• 76% exceeded EPA limits for cadmium content
• 88% of samples contained five toxic metals: aluminum, arsenic, cadmium, lead, and mercury
• Thin Mints showed the highest glyphosate levels at 111.07 ppb, 334 times above safety thresholds

What Is the Connection Between Girl Scout Cookies and Roundup?

Girl Scout cookies contain high levels of glyphosate, the active ingredient in Roundup weed killer. Farmers use Roundup to dry wheat, oats, sugar cane, and other cookie ingredients before harvest. The chemical doesn’t wash off during processing, leading to residues in the final products. Laboratory testing revealed levels up to 111.07 ppb in Thin Mints – 334 times higher than agricultural experts consider safe.

What Toxic Chemicals Did Labs Find in Girl Scout Cookies?

Independent laboratory analysis commissioned by consumer groups revealed multiple contaminants across all tested varieties. Thin Mints contained the highest glyphosate levels at 111.07 ppb, while Peanut Butter Patties showed the highest toxic metal contamination. The tested contaminants included aluminum, arsenic, cadmium, lead, and mercury, with 22 out of 25 samples testing positive for all five metals.

Dr. Don Huber, Professor Emeritus of Purdue University, states that the average glyphosate level found (33.43 ppb) is 334 times higher than what he considers safe for consumption. The widespread presence of lead is particularly concerning, as medical experts consistently maintain no safe level of lead exposure.

Heavy Metal Testing Results

Glyphosate Testing Results

Documented Cancer Cases from Glyphosate Exposure

Laboratory testing revealed glyphosate contamination in every Girl Scout cookie sample tested, ranging from 13.57 ppb in Peanut Butter Patties to 111.07 ppb in Thin Mints. The University of Washington’s Department of Environmental & Health Sciences documented a 41% increased risk of non-Hodgkin’s lymphoma from glyphosate exposure in their 2019 meta-analysis.

Medical records from Roundup litigation cases show these specific cancers linked to glyphosate exposure:

• Non-Hodgkin’s Lymphoma: The most common cancer linked to glyphosate exposure, affecting the body’s lymphatic system
• B-cell Lymphoma: Cancer affecting B lymphocytes, crucial components of the immune system
• Burkitt Lymphoma: An aggressive form of non-Hodgkin’s lymphoma that targets immune cells
• Chronic Lymphocytic Leukemia: A blood and bone marrow cancer affecting white blood cells
• Follicular Lymphoma: A slow-growing cancer of the lymphatic system
• Hairy Cell Leukemia: A rare, slow-growing blood cancer affecting B cells
• Mantle Cell Lymphoma: A rare form of non-Hodgkin’s lymphoma
• T-cell Lymphoma: Cancer affecting T lymphocytes
• Small Lymphocytic Lymphoma: A type of non-Hodgkin’s lymphoma affecting the lymph nodes

Dr. Michelle Perro, lead author of the GMOScience study, documented additional health impacts: “Our research shows these contaminants damage DNA, disrupt hormone function, harm gut bacteria, and cause reproductive problems. The combined presence of glyphosate and heavy metals creates a toxic burden the human body struggles to process.”

Medical records from 165,000 Roundup lawsuits document cancer diagnoses following regular glyphosate exposure. Court documents show cancer development periods ranging from 2 to 15 years after initial exposure.

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How Much Money Have Glyphosate Cancer Victims Received in Settlements?

Bayer has paid over $11 billion in settlements addressing approximately 165,000 Roundup exposure lawsuits. Court records from January 2025 document these major verdicts:

• $1.56 billion awarded to three non-Hodgkin’s lymphoma patients in Missouri courts
• $175 million to a Pennsylvania resident who developed cancer after residential Roundup use
• $2 billion to a California couple who both developed non-Hodgkin’s lymphoma
• $332 million to a 51-year-old landscaper in California diagnosed with lymphoma
• $20.5 million to a school groundskeeper who used Roundup at work
• $3.5 million to a woman who developed cancer after five years of Roundup exposure

Bayer acquired Monsanto, Roundup’s original manufacturer, in 2018. Court documents show Bayer filed multiple appeals to delay payouts, extending legal proceedings for cancer patients. Despite these delay tactics, juries consistently found glyphosate exposure caused cancer in exposed individuals.

What Should You Do If You Suspect Glyphosate Exposure Caused Your Cancer?

People diagnosed with non-Hodgkin’s lymphoma, B-cell lymphoma, or other blood cancers after using Roundup or consuming products with high glyphosate levels can pursue legal action. Lawsuits.org maintains a database of qualified attorneys who specialize in glyphosate exposure cases. We offer free case evaluations for individuals and families affected by glyphosate-related cancers. Court records show successful verdicts ranging from $3.5 million to $2 billion for cancer patients who proved glyphosate exposure caused their illness.