i would say its not good to feed them until they bulge on daily basis. it probably causes alot of nutrients to not be absorbed and simply excreted, and makes more waste in the water. it can cause serious problems in fish like fancy goldfish and their scrunched up digestive systems.
im sure, very large amount of food taxes the animals system in someways.
humans digestion is most efficent being feed many small meals aday(this is for putting on lean body mass), personally i think its more then likely fish are that way too.
feeding large meals infrequently ends up in more body fat and less muscle.
remember just because something is natural, doesnt mean it is the best way.