What is the optimal Omega 3:6 Ratio?
Well, good question. I don't think anyone really knows. A standard american diet (SAD) typically includes ratios of 1:10 or upwards of 1:25. That's totally nuts! Many paleo authors have suggested a ratio of 1:1 -1:3 is a more reasonable ratio for optimal health. These ratios more closely resemble the ratio's that our traditional ancestral diet may have contained.
Should I Supplement?
Well, good question. If you eat a squeaky clean paleo, ancestral or primal diet, with no processed food, no inflammatory seed oils (think canola based margarine) it's easy to think you're doing a smashing job! That being said, even I occasionally cave and eat a bag of organic chips made with canola, and there are tons of Omega-6 fatty acids found in many paleo/primal friendly foods too. These include delicious delights such as avocados, nuts, nut flours (aka paleo treats), poultry and pork products (yup...bacon).
Most of us aren't perfect in balancing these ratios and we tend to be exposed to many more omega-6 fatty acids in our diets than may be optimal. It's good to look at your intake of these foods and be honest about how much poultry, nuts and avocados you really consume.
To aid in ratio optimization, try to add in more grass-fed beef, game or organ meats, watch your consumption of nuts and seeds (walnuts and macadamias are a good choice), and try to include more cold water fish like herring, mackerel and sardines. You can also get DHA from flax, hemp and chia but it must be converted in the body from ALA to EPA/DHA. Unfortunately, this process isn't very efficient. According to Chris Kresser, less than 5% of ALA getting converted to EPA with less than 0.5% being converted to DHA. Best to stick with the fish and grassfed meats.
If you are trying to treat a specific health condition, trying to conceive or are pregnant or breastfeeding, supplementation may be a good choice and is supported by both mainstream medical doctors and most natural health practitioners alike.
There are numerous studies touting the benefits of supplementation with DHA, most notably from fish oil. Supplementation of DHA from fish oil has been shown to be beneficial for fertility, pregnancy and breastfeeding.
DHA supplements may help: