In general, sea turtles are opportunistic animals, usually following an omnivorous diet. Feeding habits vary between species, life stages, behavior and may depend on ecological factors. There is a big change in the diet from the pelagic phase (during the first year of life) to the juvenile phase, which is usually associated with benthic habitats. Food preferences are manifested in the juvenile stages, but the development and duration of these choices are not yet well understood.
Despite their dietary preferences expressed in their juvenile stages, opportunities are not wasted. Thus, in addition to their preferred food, sea turtles can also feed on dead animals (saprophytic), fish eggs and even human waste (such as plastic), a choice that can lead them to death.