Why is fish different from meat?
Fish has shorter muscle fibers and less connective tissue than meat, and the connective tissue is more delicate and positioned differently. In fish, connective tissues lie mainly in thin sheets that separate orderly layers of muscle fibers.
Why is fish not meat Catholic?
It simply meant abstaining from eating the flesh of warm-blooded animals—since the thinking goes, Jesus was a warm-blooded animal. Fish, though, which are cold blooded were considered okay to eat on fasting days. Hence, Fish on Fridays and “Fish Friday” (among many other religious holidays) was born.
Is fish a meat or not?
Structurally, meat commonly refers to skeletal muscle, tissues, fat, and innards. Based on these definitions, there’s no doubt that fish is considered meat. However, some experts use meat to specifically describe the flesh of mammals. Fish have a totally different habitat from mammals and are cold-blooded animals.