Before throwing away familiar foods because of a frightening headline, it is worth examining what research actually says.
Chapter 2: Unripe Fruit, Mold, and Naturally Occurring Toxins
One possible source of confusion involves unripe fruit. Some fruits are perfectly edible before they become fully ripe, while others contain substances that can cause irritation or illness if consumed in the wrong form or quantity.
For example, unripe green mangoes are commonly used in cooking in many countries. Their sour taste reflects differences in acidity and composition as the fruit matures. Eating them in reasonable amounts is not known to cause cancer simply because they are unripe.
Other plants require more caution. Certain varieties of wild fruit are toxic, and some fruits contain naturally occurring compounds that make them unsuitable for consumption unless properly prepared. Correct identification is therefore important, particularly when gathering unfamiliar fruits from the wild.
Mold presents a separate concern. Under certain conditions, molds can produce mycotoxins, some of which are associated with serious health risks. Aflatoxins, for instance, can contaminate improperly stored crops such as peanuts and corn and are established risk factors for liver cancer.
However, this does not mean every moldy fruit contains aflatoxins or that the green fruits pictured in the viral image are cancer-causing. The image alone cannot establish the identity, safety, or contamination status of the produce.
Image 1: Fresh green and ripe tropical fruits displayed at a market, illustrating the differences in appearance that can occur during fruit maturation.
As a general precaution, discard fruit that is visibly moldy, rotten, or has an unusual smell or texture. For soft fruits, mold may extend beyond the visible area, so cutting away the affected section is not always sufficient.