Moreover, it seems there is a link between consumption of fish rich in omega-3 fatty acids and depression. In fact, some studies have shown that fatty substances presented in fish can help the brain in better usage of serotonin, a hormone that positively affect mood.
Vienna professor Hademar Bankhofer reveals that healthiest types of fish are those that contain the greatest amount of valuable omega-3 fatty acids, fish such as: herrings, tuna, mackerel, black cod, leaf, salmon and perch.
The percentage of fat varies from one species to others, and based on this percentage it differs lean fish with less than two percent lipids (such as cod, hake), slightly oily fish with two to five percent lipids (zubatac, anchovy and trout), a semi fat by five to ten percent lipids (like tuna and swordfish) and fat with more than ten percent lipids (such as salmon, mackerel and eel).
Absolutely the best fish is herring, argues Professor Bankhofer. This tasty fish from the North Sea contain omega-3 and omega-6 fatty acids and can be prepared in many ways. Herring’s content of proteins, that strengthens the immune system and eliminate the effects of stress, is average, but the proportion of omega-3 and omega-6 fatty acids is really great. On the other hand, this fish is not conducive to weight loss as 100 grams herring contain 233 calories.
Fish that will help to lose weight is tuna, which has only 76 calories in 100 grams. It provides us with a significant amount of protein and it is ideal for people who are exposed to stress.
Mackerel took the third place on our ranking list for the healthiest fish. It used to be considered as a poor fish. This fish with 182 calories and a high proportion of omega-3 fatty acids is an ideal commodity for regulating blood pressure because with its proteins, mackerel fish make our blood vessels elastic, considered HademarBankhofer.
Other fish that positively affect our health are the bakalar, leaf, salmon and perch. These fish are very useful for our body. They not only contain unsaturated fats that protect against cardiovascular disease, but also combat stress, improve concentration and represent a rich source of mineral salts.
Sea fish are rich in iodine, potassium, sodium and copper, while freshwater fish contains less sodium and iodine. All types of fish contain vitamins B1, B2, B6 and B12, which are valuable for the proper functioning of our nervous system. Every fish is rich in calcium and can have positive outcome for our health in general.