Can linseed oil be eaten after its shelf life?

Linseed oil can't be eaten after its shelf life.

Expired edible oil will produce a lot of aflatoxin, which is recognized as one of the proven carcinogens.

Aflatoxin B 1 is the main pollutant in food and edible oil, and its toxicity is generally considered to have three clinical characteristics; Acute poisoning, chronic poisoning and carcinogenicity:

(1) Acute poisoning:

It is a highly toxic substance, which is 0/0 times more toxic than KCN/KLOC-0, 68 times more toxic than arsenic, second only to botulinum toxin, and is the most toxic among known molds. Its toxic effects, no matter to any animal, are mainly manifested in the changes of liver, such as acute hepatitis, hemorrhagic necrosis, fatty degeneration of liver cells and bile duct hyperplasia. There are also mild lesions in spleen and pancreas.

(2) Chronic poisoning:

Long-term intake of small doses of aflatoxin can cause chronic poisoning. Its main feature is chronic liver injury, such as liver parenchymal cell degeneration, cirrhosis and so on. There are a series of symptoms such as animal growth retardation, weight loss, female infertility or litter size reduction.

(3) Carcinogenicity:

Aflatoxin is the most carcinogenic chemical known at present.

Its carcinogenic characteristics are:

A has a wide range of carcinogenic effects and can induce experimental tumors in fish, poultry, various experimental animals, domestic animals and primates;

B is highly carcinogenic, and its carcinogenicity is 0/000 times higher than that of bhc/kloc-0;

C can induce a variety of cancers. AFT can mainly induce liver cancer, gastric cancer, renal cancer, lacrimal gland adenocarcinoma, rectal cancer, breast cancer, ovarian and small intestine tumors, and teratoma can also occur.