Tuna Omega-3 Chewable, with natural orange flavor, provides DHA and EPA omega-3 fatty acids in a naturally occurring 5:1 ratio, as well as vitamins D and E. Omega-3s are essential for proper neural development, learning and cognitive function in children, and promoting a healthy mood. Vitamin D is vital to children's bone health and supports a healthy immune system. Vitamin E provides protection against free radicals. Each batch of Tuna Omega-3 Chewable is consistently tested for contaminants (PCBs, mercury, etc.) to assure it meets the highest quality specifications.