I don't know that there is a universal recommendation right now for how much omega-3 fatty acids are needed every day. I have heard 2-4% of calories, but that is probably a recommendation for those eating the SAD diet.
This is for adults, but I would imagine tissue saturation and optimal omega 3/6 balance would apply to children as well.
Quote:
| "The amount of n-3 needed to attain 60% tissue concentration is dependent upon the amount of n-6 in the diet. In the Phillipines, where n-6 intake is less than 1% of total calories, only 278mg/d of EPA & DHA (0.125% of calories) is needed to achieve 60% tissue concentration. In the U.S., where n-6 intake is 9% of total calories, a whopping 3.67g/d of EPA & DHA would be needed to achieve 60% tissue concentration." |
This site talks about how eating salmon or tuna just twice a week helps raise omega-3 levels as effectively as daily fish oil supplements.