Penguins eat Seafood. Penguins are carnivores with piscivorous diets, getting all their food from the sea and relying on clean, healthy seas for rich sources of nutritious prey.
The exact foods different penguin species take depends on their range, bill size and shape, foraging behavior and other factors, but the most common foods include Silverfish, lantern fish, sprats, pilchards, mullets, anchovies, sardines, cod, opal fish and other small fish are the majority of most penguins' diets and healthy populations of these species are essential for penguins to thrive. Penguins hunt all of their prey in the ocean, and their amazing swimming abilities and keen underwater eyesight give them predatory advantages.