Peanuts, a popular snack, may pose hidden risks to liver health due to aflatoxins— toxic compounds produced by certain types of mold. Long-term exposure to aflatoxins can damage liver cells and increase the risk of liver diseases, including liver cancer. Experts advise proper storage of peanuts, avoiding moldy nuts, and consuming them in moderation to minimize health risks, according to Times Now.
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Do Peanuts Harm the Liver?
As winter approaches, many people enjoy eating peanuts—one of the cheapest and most nutritious nuts, rich in fiber and known for promoting satiety.
While peanuts are an affordable source of plant-based protein and healthy unsaturated fats, they are also recognized for supporting heart health, metabolic balance, and overall wellness. However, a new study has revealed a possible link between peanut consumption and liver damage.
According to experts, contamination with aflatoxins—poisonous compounds produced by fungi during improper storage or processing—can pose a serious threat to liver health. Doctors warn that prolonged exposure may lead to conditions such as cirrhosis or liver cancer.
What Are Aflatoxins?
Aflatoxins are toxins produced by certain molds, typically Aspergillus flavus and Aspergillus parasiticus, which grow on crops such as corn, peanuts, and nuts.
Experts note that regular exposure to aflatoxins is associated with an increased risk of liver cancer, affecting both humans and animals. Aflatoxins are a major global food safety concern due to their stability in food and their potential to contaminate crops before and after harvest.
Studies have identified six known types of aflatoxins: B1, B2, G1, G2, M1, and M2. Among them, aflatoxin B1 is the most toxic and carcinogenic, primarily attacking the liver and causing acute poisoning characterized by liver failure, jaundice, vomiting, and abdominal pain.
However, chronic low-dose exposure can also lead to severe health consequences, including growth retardation in children, weakened immunity, and metabolic damage. The risk of liver cancer increases particularly among malnourished populations in developing countries.
One study found that exposure to aflatoxins increases the risk of liver cirrhosis by approximately 2.5 times compared to unexposed individuals.
Why Are Peanuts Prone to Mold Contamination?
Experts explain that peanuts are naturally susceptible to fungal contamination because they grow underground, have porous shells, and are often stored in conditions that favor mold growth. Since peanuts develop in soil, they are easily exposed to fungi, and their shells can allow contaminants to penetrate.
Once harvested, if peanuts are not properly dried, they absorb moisture from the environment. Improper storage with high humidity and temperature creates an ideal environment for mold development.
Additionally, environmental factors such as climate change can lead to drought, which cracks peanut pods and creates entry points for fungal spores.
What Happens If You Eat Too Many Peanuts?
Although peanuts are delicious—especially when roasted and salted—eating them in large amounts can cause digestive issues such as bloating, gas, and weight gain due to their high caloric content, and in some cases, even interfere with mineral absorption.
Doctors warn that individuals with peanut allergies may experience severe allergic reactions. Moreover, overconsumption of salted peanuts can lead to high blood pressure, while excessive intake—particularly of moldy peanuts—can result in exposure to harmful toxins.
