These days, when purchasing vegetables or fruits, people tend to focus on finding options that are clean, affordable, and in season to avoid the harmful effects of chemicals. However, beyond these typical criteria, some fruits—despite being tasty, nutritious, and inexpensive—contain toxins that can promote cancer development.

So, which fruits are these? Experts advise avoiding these five types of fruit as they may increase cancer risk, including some commonly consumed varieties today.

1. Rotten Fruit: Aflatoxin Linked to Liver Cancer, as Noted by WHO

Many people buy cheap, slightly rotten fruit, attracted by its sweetness, fragrance, and nutrients when fresh. However, consuming moldy fruit can lead to digestive issues such as nausea, diarrhea, and bloating. Mold contains aflatoxin, a toxin that can cause hepatitis and liver cancer. Aflatoxin doesn’t just stay on the surface; it penetrates deep into the food. So, even if the affected parts are cut away or the fruit is cooked at high temperatures, the risk of poisoning remains.

2. Betel Nut: Oral Cancer Hazard Warned by IARC

Betel nut and betel leaf are traditional snacks in some countries. However, chewing betel nut can cause abrasion of the oral mucosa, leading to the epidermis peeling off or creating scratches. Toxins in betel leaves, areca nuts, figs, or tobacco can then irritate these areas, potentially causing cancer.

Research shows that arecolin and arecailin in areca nuts stimulate the secretion of gastric juices, reduce heart rate, and activate nerves, which is why many people feel pale after chewing betel, similar to the effect of consuming alcohol.

3. Cold-Stored Fruits: Nitrites Could Lead to Cancer

When the weather heats up, many opt for cold-stored fruits. However, experts caution that most tropical fruits are not suitable for refrigeration, as they may develop nitrites, compounds linked to cancer risk.