NO.
On the contrary, flaxseed oil has more v ω-3 than ω-6.
Flaxseed oil: http://www.nutritiondata.com/facts/fats-and-oils/7554/2 RATIO: 43 Salmon oil: http://www.nutritiondata.com/facts/fats-and-oils/632/2 RATIO: 23 (allegedly the best fish oil for ω-3) Cod Liver Oil http://www.nutritiondata.com/facts/fats-and-oils/628/2 RATIO: 21.5 http://www.nutritiondata.com/facts/fats-and-oils/629/2 http://www.nutritiondata.com/facts/fats-and-oils/633/2 ...
> Flax, like chia, contains approximately three times as much n−3 as n−6.
> Oils from these fish have a profile of around seven times as much n−3 as n−6.
Obviously WP is not infaliable and needs to be corrected.
(I usually drink Flax seed oil because fish oil seems grouse).
I'm interested - do you have a citation for that? I've read that teeth can repair themselves to some extent in Weston A. Price's Nutrition and Physical Degeneration.
> Thus accumulation of long-chain n−3 fatty acids in tissues is more effective when they are obtained directly from food or when competing amounts of n−6 analogs do not greatly exceed the amounts of n−3.
Fish oil contains a higher ratio of omega-3 to omega 6 than other sources (flax seed).
Also, fish oil contains Vitamin D which is very good for teeth (if you get enough vitamin D, holes in teeth repair themselves).
A lot of fish oil is also specified as "cod liver oil". So I don't think that it uses the above fish and i don't think that the cod livers is used in food (so it is a byproduct).