Fish are short sighted. Their eyes can look in separate directions at the same time. They do have colour vision, though. Hence the use by anglers of brightly coloured bait. Just as we use our hands, fish use their tongues and lips to build nests, gather food and hide their young from danger.
Fish meat has no complex carbohydrates and no fibre.
Fish, such as sea trout, are almost one-third fat and salmon meat is more than 50 per cent fat. Ounce for ounce, shrimp has double the cholesterol of beef. And while fish and fish oil capsules do contain essential fatty acids, such as omega 3, they also contain an equal amount of artery-clogging saturated fats. The flesh of fish comes loaded with toxic chemical residues, which concentrate in their muscles. This is because fish swim the global ocean, picking up industrial pollution.