Vegetable oils seem to emerge out of every product recently. Hennep/weed oil, corn oil, rice oil and so on. The big problem with all the vegetable oils nowadays is that there is no regulation about the content of these oils yet. Premium oils like avocado oil can be sold as 100% avocado oil. Because there is no regulation about the content of vegetable oils anywhere in the world (to our knowledge), there are companies who take advantage regarding this gray area. The label of the product could state that it is 100% genuine avocado oil, the product however could contain 10% avocado oil and 90% sunflower oil. The end consumer will not know what they are buying. Large supermarkets buy everything in bulk these days. not so much the quality but the quantity and price is more important for these big multinationals. This is why they can provide vegetable oils for a very low price, not knowing what they are providing to their customers.
Suppliers of vegetable oils provide the oils in beautiful bottles and a nice label with a premium look. This is what the big supermarkets demand, they are taking advantage of the lack in regulation. The customers who wants to buy these oils with a 100% genuine content are better of going to the niche shops. These shops exist because they provide vegetable oils which are of a high quality and directly extracted from the avocado, walnut or any other premium product.
There is also a lot of variety in an oil extracted from just one product. A good example is avocado oil. 100% genuine avocado oil is what most suppliers sell. There is a variety in origin; conventional and biological (were the biological is a 100% fare product were the whole chain receives a significant part of the end product).
But there also exists a gray area of what the 100% genuine avocado oil actually means. Most suppliers crush the whole seed without the skin and sell this as refined avocado oil, which has a yellow color. Some suppliers only crush the flesh of the avocado (which is just 30-40% of the avocado fruit) and has a green color. This is mostly named the extra virgin or colt pressed avocado oil and is two to three times more expensive. Because there is no regulation regarding vegetable oils yet it can also be possible to give a pigment to the refined avocado oil and give it a green color. This way they can sell it as a extra virgin or cold pressed avocado oil for a much higher price
Recapitulating we can state that there should be more transparency and testing by suppliers who provide end consumers the vegetable oils. As a consumer you can be critical regarding the products you buy or ask what is the origin and content of the oil. If no clear answer is given, go elsewhere. Again, figures give a clear image of why this topic should be discussed in more detail: