What is one effect of contamination by aflatoxin in peanuts?

Contamination by aflatoxin in peanuts is a significant concern due to the health risks it poses to consumers. Aflatoxins are highly toxic compounds produced by certain molds that can grow on crops like peanuts, especially under conditions of warm temperatures and high humidity. These toxins are known to be carcinogenic, meaning they can lead to cancer, and are also associated with various other health issues such as liver damage and immune system suppression.

Given these serious health implications, it is crucial for peanuts to be monitored for aflatoxin levels to ensure they are safe for human consumption. This is why understanding the effects of aflatoxin contamination is imperative in the regulation and inspection of peanuts, impacting public health policies and food safety standards. The other potential effects mentioned in the other choices do not hold true, as aflatoxin contamination does not improve shelf life, enhance nutritional value, or positively affect flavor.