Source Naturals Vegan Omega-3s EPA-DHA is an all-vegan product with a superior source of EPA and DHA compared to flax seed oil or other vegetarian sources of omega-3s. EPA/DHA supports the healthy functioning of the brain and cardiovascular systems. DHA is an integral part of neural membrane phospholipids in the brain. Made from algae, this formula is a sustainable alternative to overfishing the oceans. Each serving delivers 600 mg of omega-3 fatty acids.