All natural. Natural source of omega-3. Ducktrap River of Maine: Ducktrap River of Maine produces the finest smoke roasted salmon available. We have perfected the ideal recipe for hot smoking salmon in small batches using native Maine fruitwoods and hardwoods at our smokehouse in Belfast, Maine. Ducktrap River of Maine Smoke Roasted Salmon contains no artificial preservatives or ingredients. Astaxanthin: The carotenoids (nutrients in the same family as vitamin A) used in the feed of farm-raised salmon are identical to the natural carotenoids consumed by salmon and trout in the wild and are the source of the natural color of these fish. No dyes are used. www.ducktrap.com. Naturally smoked in Maine.