Oh how this finding will get trumpeted!

The 14 veterinary and public health researchers have written to the FSA
claiming that there is compelling evidence that organic milk is a
richer source of Omega 3 essential fatty acids and that official advice
should reflect this.

There will no doubt be a spill over to all other forms of organic food as well. The only problem is that this result is not because it is organic, it’s a side effect of something else. That is, we cannot generalize from stating that because organic milk is better in one way, that all organic foods are:

"The reason why it has so much Omega 3 is because we cannot use
nitrogen on the grass," he said. "So instead we sow a lot of clover
seeds in the grass which fixes the nitrogen in the ground. Clover is
high in omega 3 and it gets in the milk."

So if conventional farmers were to sow clover then their milk would be just as healthy as the organic milk: it’s a side effect, not a function of it being organic.

Reminds me in away of the thing from a couple of years ago, that organic tomato ketchup protected against cancer better than conventional. It’s well known that lycopene, the thing that makes both tomatoes and ketchup red, does indeed protect against certain cancers (palate, oesophagus etc). But why would organic ketchup protect better? Because they don’t use high fructose corn syrup, relying instead upon the natural sweetness of the tomatoes. Which means they put more tomatoes in each bottle. Which means more lycopene.

Nothing at all to do with it being organic, simply a side effect: you’d get exactly the same effect from a non-organic ketchup that used the same number of tomatoes.