Seafood is a food group that contains a wide variety of aquatic creatures that are eaten as a food. It is typically divided into two groups: fish and shellfish. Both seafood and fish are nutritious foods that contain healthy protein and fats. Those who consume seafood regularly are generally less susceptible to heart disease, cancer and other illnesses. Fish also contain the essential nutrient potassium, which is necessary for a healthy heart and circulatory system. A high intake of fish can help to prevent certain eye diseases.

Seafood is also a great source of omega-3 fatty acids, which are important for cardiovascular and eye health. These nutrients are particularly important for those who want to reduce their risk of developing diabetes or night blindness. Many people eat seafood in addition to other food groups to ensure a nutritionally balanced diet.

Seafood is harvested from both freshwater and saltwater environments. This includes fish, molluscs, and crustaceans. The majority of seafood is consumed by humans. However, some species are fed to domestic pets, and some is used in aquaculture. In addition, some seafood is a source of protein for other plants.

Some of the most nutritious types of seafood are molluscs. They come in a range of sizes and can be cooked in several different ways. Molluscs contain large amounts of protein, which is important for the human body. Most mollusks are eaten raw, although some are cooked whole.

When choosing seafood, it is advisable to avoid those that have a fishy smell. Instead, look for a fresh, sea breeze-like smell. If a seafood does have a smell, it is a sign that it has been contaminated. Be sure to wash your hands thoroughly before eating any seafood. Also, beware of cross-contamination. For example, if you eat crustaceans such as prawns, you should check the utensils you used to prepare the dish.

Other seafood can be found in saltwater, including crabs, sturgeons, and oysters. Shellfish are often added to a number of dishes, such as fried rice. Although they can be an excellent source of protein, they are highly perishable. Therefore, it is advisable to store commercially-wrapped frozen seafood at -20 degrees F or below.

The business of fishing and aquaculture has been transformed in the last decade. This is due to the globalization of trade and the increasing demand for seafood. As a result, seafood processing is becoming more concentrated, and the health and safety of seafood has become a concern.

Foodborne illnesses can be caused by bacterial enzymes that produce unpleasant volatile compounds. Another problem with seafood is that some may be contaminated by cyanobacteria and Pfiesteria. Cyanobacteria and Pfiesteria are toxicants that can cause human foodborne illness. Symptoms of food poisoning are typically attributed to consuming seafood that is stored or processed improperly.

The most important factor to consider when determining which kinds of seafood are best for your health is to determine its origin. Depending on your location, you may be at risk for health problems from a number of different kinds of seafood.