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Fish products have been shown to contain varying amounts of heavy metals, particularly mercury and fat-soluble pollutants from water pollution. Species of fish that are long-lived and high on the food chain, such as marlin, tuna, shark, swordfish, king mackerel and tilefish contain higher concentrations of mercury than others. [4]
Food Saturated Mono-unsaturated Poly-unsaturated As weight percent (%) of total fat; Cooking oils; Algal oil [1]: 4: 92: 4 Canola [2]: 8: 64: 28 Coconut oil: 87: 13: 0 Corn oil
Fish oil, menhaden: 521 Foie Gras: 515 Roe: 479 Egg: 373 Lamb kidney: 337 Pork liver: 301 Clarified butter; Ghee: 256 Butter: 215 Oyster: 206 Lobster: 200 Pate: 150 Heavy whipping cream: 137 Crab meat (Alaskan King) 127 Shrimp: 125 Light whipping cream (30-36% fat) 111 Cream cheese: 110 Yellow cheese (about 1 cup) 108
The tables below include tabular lists for selected basic foods, compiled from United States Dept. of Agriculture sources.Included for each food is its weight in grams, its calories, and (also in grams,) the amount of protein, carbohydrates, dietary fiber, fat, and saturated fat. [1]
It has been claimed that among hunter-gatherer populations, omega-6 fats and omega-3 fats are typically consumed in roughly a 1:1 ratio. [3] [4] [better source needed] At one extreme of the spectrum of hunter-gatherer diets, the Greenland Inuit, prior to the late Twentieth Century, consumed a diet in which omega-6s and omega-3s were consumed in a 1:2 ratio, thanks to a diet rich in cold-water ...
Whitefish, such as haddock and seer, contain very little fat (usually less than 1%) whereas oily fish, such as sardines, contain between 10–25%. The latter, as a result of its high fat content, contain a range of fat-soluble vitamins (A, D, E and K) and essential fatty acids, all of which are vital for the healthy functioning of the body." [8]
Oils from these fishes have around seven times as much omega−3 as omega−6. Other oily fish, such as tuna, also contain n−3 in somewhat lesser amounts. [1] [66] Although fish are a dietary source of omega−3 fatty acids, fish do not synthesize omega−3 fatty acids, but rather obtain them via their food supply, including algae or plankton ...
Fish oil is used in aquaculture feed, in particular for feeding farmed salmon. [4] Marine and freshwater fish oil vary in contents of arachidonic acid, EPA and DHA. [5] The various species range from lean to fatty, and their oil content in the tissues has been shown to vary from 0.7% to 15.5%. [6] They also differ in their effects on organ ...