High Omega-6 Diet Lowers Omega-3 Status, but Low Omega-6 Diet Preserves
Omega-3 Supplements Work Better with a Low Omega-6 Fat Diet
High Omega-6 Fat Diet Lowers Brain DHA and Slows Neurite Growth
In a situation, such as the UK or the USA (and probably Australia but I don't actually know what the average Omega 6 omega 3 ratio is in Australia) I'm guessing it's probably somewhere between UK and USA which are between 20 and 30 times too much omega 6 in proportion to omega 3, if anyone wants to benefit from omega 3 supplements such as DHA they first have to lower the amount of omega 6 in their diet.
They then have to grasp the simple idea that the half life of omega 6 once in the body is about 2 yrs. So eliminated additional industrial seed oil consumption for 2 yrs while maintaining a high omega 3 intake will result in halving the 30 <> 1 omega 6 to omega 3 2 yrs later to 15 to 1
and 4 yrs after you'll be down to 7/8<> 1 omega 3 and will at bit of luck and persistance after 5 yrs you'll be about the level omega 3 is NOT BEING DISPLACED by excess omega 6.
Stephan at wholehealthsource has a graph of omega 6 levels in human breast milk.
It's shows human breast milk in 2005 in the USA was around 15 times too high in omega 6, it's probably worse now. Anything over 5 is bad news. It's no good thinking a few omega 3 capsules at that level is going to have much impact without eliminated omega 6 industrial seed oil intake at the same time.
If you wanted to see the effects of improved omega 3 status then you need to have reduced omega 6 status at least 2 years before the trial and preverably 5 years before you become pregnant.
Imagine if you were deeply in debt and someone gave you a small amount of extra money each day. While you have such a huge overdraft the interest payments and bank charges are so huge that wipe out the benefit of the small amount of extra money daily. We wouldn't say having more money doesn't help, it's just when the situation is so dire more extreme measures are required to retrieve the situation. So with omega 3. While the person consuming it is still consuming omega 6 the effect of the omega 6 is continually overwhelming the impact of the omega 3 supplement.