Green Pasture add an expiration date to their products because the law requires an expiration date to be on health supplements.
Traditionally, Green Pasture products would only have a manufacturing date (MFG) to their products. This was so consumers could see how fresh their product was. They didn’t add a expiration date because they believe that the product doesn’t expire. In fact, it has been said by many that Green Pasture products get better with age! The current research does support this, although the research is limited. Fermented cod liver oil is a unique product, and so the only research available is that which is done by Green Pasture themselves.
We do know the oil is very stable, but what makes it stable isn’t clear. There is a vast number of potential micro-nutrients which may play a role, and these are discussed in greater detail in this article.
However, since the Fermented Cod Liver Oil scandal, Green Pastures have added an expiration date to their products. The scandal sadly caused a lot of mistrust in the brand. One problem that got raised in the scandal was that it was illegal to sell health supplements without an expiration date. Green Pastures had labelled it accurately to what they believe to be true – that the product doesn’t expire. However, the law has a different idea, and supplements need expiration dates.
The expiration date is a little arbitrary – 2 years from the date of manufacture. This is because no one really know when, or if, fermented cod liver oil expires. Many cod liver oils last 2 years from when they are manufactured though, so Green Pasture thought this was a suitable expiration date. Green Pasture still believe (as well as many other people) that their products don’t expire, and that they get better with age.
You can still tell how fresh your product is – just take 2 years off the expiration date.