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The Fish's Anatomy – Check Out Its Characteristic Features!
Nutrition
Wojciech Wiśniewski
Author
2026-03-25
Date
5 min. read
article.read_time
4
Chapters
Fish, which were once overlooked and underestimated by doctors, are now highly sought after. All medical experts emphasize their health advantages with great vigor. Unfortunately, now that they have earned their reputation, they are being overlooked by us and rarely make an appearance on our tables. Just 1-2 servings of fish per week are capable of lowering the risk of heart disease by up to 50%, regulating blood pressure, and enhancing memory and concentration.
Fish and its impact on heart health
Nowadays, we often hear about the incredible effects of omega-3 fatty acids. Indeed, their health benefits are very intense and comprehensive, and their presence in our bodies is essential for our proper functioning. Unfortunately, our bodies are unable to produce these fatty acids, which means that we need to include foods rich in these nutrients in our diet. The best source of these fatty acids is fatty fish. The impact of omega-3 fatty acids on our circulatory system is complex: – they prevent blood platelet aggregation; – they increase blood flow; – they reduce the contractility of blood vessels; – they regulate blood pressure; – they reduce the risk of strokes and heart attacks, and if these diseases occur, they make them appear in a milder form; – they lower triglyceride levels; – they increase the level of good cholesterol. Thanks to this, even small amounts of fish – about 30 grams daily or 1-2 servings per week – provide the best protection for our heart and circulatory system against dangerous diseases and conditions. An example of this are the Eskimos and the inhabitants of Japanese villages, who rarely suffer from heart diseases, as fish is a staple in their diet.
Support for our brains
Apart from omega-3 fatty acids, fish also contain a substantial amount of high-quality protein. These components, especially tyrosine amino acids, are able to activate our brains during periods of intense exertion. In ancient times, it was believed that consuming fish enhances our intellectual abilities and makes us smarter. Although we now know that's not true, we can say with certainty that in certain situations, they increase our brain activity. During intense, exhausting mental work, it's important to protect our bodies from losing nutrients. For this purpose, it's worth using fish, which in addition – thanks to the mentioned tyrosine – produces stimulating substances in our brains. As a result, our thought processes run more efficiently, and our mood also improves.
Fish for mood elevation
What other valuable substances can we find in fish? After omega-3s and full-fledged protein, it's worth mentioning selenium, a substance that has a significant impact on our mood. Although we know the health benefits of fish, it's hard to believe that food can have such an effective impact on our mental well-being. A deficiency in selenium in the diet can have serious consequences, such as constant fatigue, bad moods, irritability, frustration, or anxiety. These risks are associated with a selenium-poor diet and can contribute to the development of depression. Studies show that in the case of selenium deficiency – supplementing its level effectively improves mood. However, when the body reaches the right level of this element, further supplementation does not bring any additional benefits. Regular consumption of selenium-rich fish is, however, an excellent protection against potential mood swings.
The most recent findings regarding the effectiveness of fish consumption
Scientific and medical research confirms the immense significance of fish for our health and its impact on the functioning of our body. Therefore, analyses are increasingly being conducted to study the effects of fish fat on our health. The latest and most important studies for our health show that fish have a great significance for our body: Fish oil can protect us from the formation and development of fatty acids in our gut and prevent the development of colon cancer; Fish fat has been used for the treatment of rheumatic diseases for many years, and modern scientific studies confirm its soothing effect on the symptoms of rheumatism; the replacement of animal fats with fish fat can prevent kidney damage, but this effect occurs only in individuals in the early stages of the disease; fish consumption can reduce the frequency and intensity of migraine attacks; fish fat improves the skin condition of 2/3 of people with psoriasis to whom this type of compound was administered. However, it is important to note that the benefits of fish for our body cannot be utilized by occasional inclusion in our diet. Fish should not be a supplement for us, but a replacement for unhealthy saturated fats of animal origin. It is also worth noting that the regular inclusion of fish fat in our diet has a better effect than the intake of capsules containing cod liver oil.
