Marine fish and freshwater fish are competing in nutrition
Dear friends, have you ever stopped in front of seafood markets and freshwater fish stalls, hesitating which fish to choose to treat your taste buds and body? Recently, a hot topic on the Internet has attracted widespread attention: Are marine fish more nutritious than freshwater fish? In this regard, the Hedong Rumor School gave us a subversive answer: the DHA content of freshwater fish is not necessarily lower than that of marine fish, and there is not much difference in nutritional content between the two. So, today we will take a deep look at this topic and take you to uncover the mystery of marine fish and freshwater fish nutrition.
First, let's learn about DHA. DHA, that is, eicosapentaenoic acid, is a very important unsaturated fatty acid for the human body, known as the "brain**" It plays a vital role in the development of the brain and retina, especially for pregnant women, infants and the elderly, DHA intake is indispensable. Therefore, many people believe that marine fish are more nutritious because they are rich in DHA.
However, research by the Hedong Rumor School has shown that freshwater fish do not necessarily have lower DHA levels than marine fish. This begs the question: why is this happening? In fact, this is related to many factors such as the type of fish, the growth environment, and the food**. While marine fish live in a marine environment rich in DHA, freshwater fish can also ingest enough DHA through the food chain and synthesize and accumulate it in the body. Therefore, we cannot simply judge the nutritional value of fish based on the environment in which it grows.
In addition to DHA, there are also certain differences between marine fish and freshwater fish in terms of other nutrients. For example, marine fish contain high levels of trace elements such as iodine and selenium, which play an important role in the body's thyroid function and antioxidant capacity. Freshwater fish are rich in high-quality protein, potassium, phosphorus and other nutrients, which also play an important role in maintaining the normal physiological functions of the human body. Therefore, when we choose fish, we should choose according to our own nutritional needs and taste preferences, and do not have to be too rigid about marine fish or freshwater fish.
So, how can fish be better preserved and brought out its nutritional value when buying and cooking? Here are a few tips to share with you:
Choose fresh fish. Whether it's marine or freshwater fish, freshness is key to ensuring nutritional value. When purchasing, we can judge the freshness of the fish by looking at its eyes, scales, meat quality, etc. In general, fresh fish have clear and transparent eyes, tight and shiny scales, and firm and elastic flesh.
Reasonable cooking. When cooking fish, we should try to choose healthy methods such as low-temperature slow cooking, steaming, and stewing, and avoid high-temperature frying or grilling practices that can easily destroy nutrients. In addition, some vitamin- and mineral-rich ingredients such as tofu, vegetables, etc., can also be added when cooking to enhance the nutritional value of the whole dish.
Consume in moderation. Although fish is rich in nutritional value, it should not be consumed in excess. According to the recommendations of the Dietary Guidelines for Chinese Residents, adults should consume 100-200 grams of fish 2-3 times a week. In addition, we should also pay attention to the combination with other foods to maintain a varied and balanced diet.
Through today's sharing, I believe you have a deeper understanding of the nutritional value of marine fish and freshwater fish. When choosing fish, we should choose according to our nutritional needs and taste preferences, and we don't have to be too rigid about marine or freshwater fish. At the same time, care should be taken to maintain the freshness and nutritional value of fish when buying and cooking it. Let's enjoy the delicious food together and inject a steady stream of vitality into the body!
In closing, I would like to say that whether you choose to eat marine or freshwater fish, the most important thing is to maintain a balanced diet and a healthy lifestyle. Remember, no food is the absolute "king of nutrition", and only the right combination and moderate intake can make us have a healthy body. Let's work together to become a better version of ourselves!