Why is DHA important?
Although DHA is present in most tissues within the body, DHA accumulates at greatest concentrations within the brain, nervous system and retinal tissue of the eye. Therefore, it is recognized to play a role in supporting normal development in these areas. DHA has also been shown to help promote heart health.
ALA, DHA, and EPA are the three Omega 3 fatty acids. DHA and EPA are found in liver, fish and other seafood. DHA is vital for brain, heart and eye function and development. Most people, especially vegetarians have ample ALA in their diets, however they lack DHA and EPA. ALA can be converted to EPA and DHA through metabolic processes in the human body, but we are very inefficient. Only 5% of ALA on average and 10% in very health individuals is converted. If you drink, smoke, are over 50 years old or have an unbalanced diet, this percentage can be lower. Ordinary eggs, generic or organic have approximately 18mg of DHA. Free range may have slightly more if the hens have sufficient access to insects or worms as a food source, but the increase would be negligible. Most research is on the potential benefits from Omega 3 fatty acids is focused on DHA and EPA rather than ALA which is most used mostly as an energy source by the body. If you want to include more DHA in your diet it is more effic