In daily life, whether gathering with friends and family or simply relaxing, nuts often appear on our tea tables or dining tables. Common nuts include chestnuts, pistachios, macadamia nuts, and walnuts. From a nutritional perspective, most nuts are rich in protein and unsaturated fatty acids, making them highly nutritious. However, it is important to note that if nuts are stored in a humid environment for too long, they can absorb moisture from the air, creating an ideal condition for mold growth.

Mold is essentially a type of microscopic fungus, and scientists have identified more than 40,000 different types. In everyday life, when food develops fine fuzzy spots or moldy layers, it indicates mold growth. Once food is contaminated with mold, its quality significantly deteriorates. However, not all molds are harmful—some even play a crucial role in biopharmaceuticals and the fermentation industry.

So, if nuts become moldy, can they harm the body? This depends on whether the mold produces toxins. Aflatoxin, also known as mold toxin, is one of the most toxic substances and has a high carcinogenic potential. Consuming a large amount of aflatoxin can pose a serious risk of poisoning.

Therefore, to avoid the harmful effects of mold when consuming nuts, keep these three key points in mind:

1. Be Careful When Choosing Nuts

When purchasing nuts, especially from bulk or loose packaging, carefully inspect their external appearance and inner kernels. Choose nuts that are plump, free from insect damage, and without visible mold spots.

2. Store Nuts Properly

It is best to buy nuts in quantities that can be consumed within a short period. Once a bag of nuts is opened, try to finish them as soon as possible. If there are leftovers, store them in an airtight bag or container in a dry, cool place to prevent mold growth.

3. Do Not Eat Moldy Nuts

Before eating, if you notice any signs of mold, such as fuzzy layers or fungal filaments on the nuts, discard them immediately. Additionally, if you detect a musty odor, bitterness, or an unusually pungent taste while chewing, spit it out immediately and rinse your mouth with clean water.

This principle does not apply only to nuts but to all food items. If you find any food showing signs of mold, do not hesitate to discard it, as consuming moldy food can seriously harm your health. Those who have a habit of saving food should keep in mind that the consequences of eating moldy food far outweigh the loss of discarding a small amount. Always prioritize your health!