Fish apart from looking extremely beautiful in the waters also tastes quite wonderful. Sea foods or for that matter river foods are extremely tasty and are also quite expensive. Sea food as a cuisine is hot favorite all over the world. Especially in the South East Asian countries sea foods in general and fish in particular form the favorite diet. Fish has been time and again thought to be healthier as compared to the other so called 'non-vegetarian' food. Fish is sometimes also prescribed to people having heart ailments, asthma, low hemoglobin etc. However, not all types of fish are as such healthy. River fish and fish that are low on fats are usually preferred to the sea fish. Sea fish are usually fattier and they also don't taste as good.

Fish is also dubbed as a brain-food. A diet that can be very much conducive to the intellect of the person. However, so far there was no conclusive result to this effect, but a recent study showed results that somewhat attest to the fact that fish can actually help your brains swim faster! A survey conducted on children who were in the preschools showed that children whose mother had fish while pregnancy had a sharper brain power as compared to the children whose mother did not have fish. Servings of low mercury fish twice a week can immensely boost up the brain development of a fetus. Omega-3 fatty acids that are to be found in the fishes like salmon, tuna, and sardines have been found to be important in the proper brain development of an unborn child.

Unfortunately, the fish that are high on fats are prone to accumulate mercury that is detrimental to the brain cells of a human being. Because of this doctors advise pregnant women to avoid having fish that are high on fat and especially those fish that have other fishes as their diet. The latter kind of fishes also have a longer life span. Thus having these fishes when they are old enough by pregnant ladies increases the chances of higher mercury intake thus affecting the brain cells of both the unborn baby as well as the mother. However, careful consumption of fresh fish and preferably from river water is beneficial both for the mother and the child.

It should not be understood that any kind of fish is healthy. Fish that are imported and are preserved especially should be avoided as they lose most of their nutrients and get transformed into mere rubbers. There is contamination in taste also. And most importantly these kinds of fish can add on to your body fat without giving any nutrition. These kinds of fish along with meat and eggs should be avoided in case you are obese and overweight. On doctors advice and prescription however, non vegetarian food can be had. Exactly in the form, content and proportion the doctor advices. Talking about obesity, like should also be had on doctor's prescription. Whether you buy xenical offline or online the prescription is mandatory. Any should be had along with a disciplined way of life with proper work out and diet in order to have the best results.