Oily fish are fish that contain at least 10% fat, most of which are the healthier omega-3 oils. In Australia, the oiliest fish include: canned salmon and sardines, some varieties of canned tuna, salmon, gemfish, blue-eye trevalla, blue mackerel, oysters and arrow squid.
White fish has at least as much protein as meat but much less fat. Good choices include King George whiting, flathead and snapper. Plus: It's official – all Australian fish species have now been analysed and every variety has enough omega-3s to be a 'good source'.
Commercially sold fish that may contain high levels of mercury include shark (flake), ray, swordfish, barramundi, gemfish, orange roughy, ling and southern bluefin tuna. In freshwater environments containing mercury, some species of fish may contain high levels of mercury.
Packed with nutrients for a healthier you
With half the calories of salmon, Barramundi is still packed with Omega-3 fatty acids (known to promote both brain and cardiovascular health) and boasts 21 grams of lean protein in a four-ounce serving.
Shrimp, tuna, clams—the most popular seafood items in the United States are familiar names to both seafood lovers and the occasional consumer.
Worst: Orange Roughy
These fish, also known as slimeheads, can live up to 150 years. But that means they've been around unhealthy elements, like mercury, for a long time. So they're not the best option for a healthy diet.
Omega-3 fatty acids are found in every kind of fish, but are especially high in fatty fish. Some good choices are salmon, trout, sardines, herring, canned mackerel, canned light tuna, and oysters.
Tilapia – tilapia is arguably the mildest tasting fish there is. It's not fishy at all and has a mild sweetness. Tilapia is easy to prepare and goes well with a variety of different flavor profiles.
Oily fish are fish that contain at least 10% fat, most of which are the healthier omega-3 oils. In Australia, the oiliest fish include: canned salmon and sardines, some varieties of canned tuna, salmon, gemfish, blue-eye trevalla, blue mackerel, oysters and arrow squid.
Stonefish are the most venomous of all fishes. They are found throughout shallow coastal waters of the northern half of Australia.
Fish with the highest levels of omega-3 include salmon, blue-eye trevalla, blue mackerel, herring, canned sardines, canned salmon and some varieties of canned tuna.
Fish like salmon, mackerel, herring, and sardines have more fat and calories, while barramundi, tilapia, whiting, and boiled prawns have fewer fat and calories.
“For most individuals it's fine to eat fish every day,” says Eric Rimm, professor of epidemiology and nutrition, in an August 30, 2015 article on Today.com, adding that “it's certainly better to eat fish every day than to eat beef every day.”
Fatty fish
Fish, in general, is an excellent and light source of protein and B vitamins that may give the body sustained energy throughout the day. Fatty cold-water fish, such as salmon, sardines, and tuna, tend to be higher in omega-3 fatty acids.
A healthy, balanced diet should include at least 2 portions of fish a week, including 1 of oily fish. That's because fish and shellfish are good sources of many vitamins and minerals.
Don't eat shark, swordfish, king mackerel, or tilefish (sometimes called golden bass or golden snapper) because they contain high levels of mercury. Eat up to 12 ounces (two average meals) a week of a variety of fish and shellfish that are lower in mercury.
Because of their many nutritional benefits, prawns are considered by a variety of health experts to be among the healthiest foods in the world. Prawns are a great source of high quality protein, and provide some of the most important vitamins and minerals that make up a healthy diet.
1. The Puffer Fish. The puffer, also called a swellfish or blowfish, inflates when disturbed or threatened. The puffer fish has a highly toxic substance called tetrodotoxin, which is located in its liver, ovaries, intestines and skin.
Swordfish is a mighty, meaty fish: eat it grilled and you'll almost feel like you're biting into a steak. Even non-fish-eaters tend to enjoy a good cut of swordfish, whose taste is somewhat similar to tuna.