Keep pulling the thread on Layne Norton.
The residual amount of hexane in most commercially processed seed oils ranges from 0.05 to 0.5 parts per million.
To ingest enough residual hexane from seed oil to cause even mild side effects, a person would need to consume 11,340 kilograms of oil at one time.
The industrial processing of seed oils removes some oxidants and impurities that may be negative.
Significant oxidation of most seed oils requires heating them at temperatures well over 200 degrees Celsius for several hours.
Heating soybean oil at 240 degrees Celsius for three hours will cause approximately 1% of the oil to become oxidized.
The process of removing hexane from crude seed oil using steam vapor is a short process, lasting on the order of minutes to 90 minutes.
The primary health danger associated with hexane is from inhalation, not ingestion.
There are no documented cases of a person dying from ingesting hexane.
In rodent studies, a dose of 5,000 milligrams of hexane per kilogram of body weight was required to cause mild liver and neurotoxicity.
Hexane does not bioaccumulate in the human body and is processed out by metabolic pathways.
Approximately 100 years ago, linoleic acid constituted less than 3% of the total food available in the diet.
Today, linoleic acid constitutes approximately 10% of the total food available in the diet.