I know that you study nutrition so I want to ask you about something I'm concerned about. Omega 3 vegan sources come from walnuts, flaxseed, chia seeds and such. This comes in the form if ALA which is converted by the body to DHA and EPA. My question is how much of it is actually converted and is the amount converted enough to keep us from being deficient? Do i have to take algea oil supplements to satisfy DHA and EPA or do i not worry about it?