EPA29 / DHA22 refined fish oil

Fish oil is a nutritional supplement that helps you get Omega-3 fatty acids, also known as DHA EPA, which are best for high-trios pregnant women. Now the deep sea fish oil on the market is exquisite in eyes, should see the origin, to listen to the word of mouth... There are some objective indicators that can make a really high quality fish oil stand out help us choose.

First: Look at the color

High quality fish oil generally appears light yellow, crystal clear; The lower the quality, the yellowish, orange-like the color.

In the purification process, fish oil will go through crude fish oil, filtration, degumming, acid removal, deodorization other steps. Take refining crude fish oil as an example, first of all, the raw fish is boiled at 80 ℃ above for 30 minutes, then the raw fish is sent to the screw press for pressing, 50% of the water in the raw material is removed, part of the fish oil is squeezed out. Centrifuge will be pressed out of the crude water separation, the lighter is crude fish oil. In addition to the fish species, the quality of crude fish oil is mainly determined by the freshness of raw fish. The acid value of crude fish oil produced with fresh raw fish is generally below 6 mg/g, with normal smell light yellow color, while the acid value of crude fish oil produced with rotten raw fish is between 7 20 mg/g. Some even as high as 30 mg/g above, color is very deep, smell bad, the main reason is that it contains more corrupt fish protein.

Second: look at the packaging

For bottled fish oil, choose a dark bottle rather than a clear one. The reason is that Omega-3 unsaturated fatty acids are easily oxidized by light, which comes high temperatures, light exposure, prolonged exposure to air. So darker bottles are better at keeping the quality of the fish oil.

In addition to bottles, some high-quality fish oils are beginning to come in medical-grade PVC sheet packaging with each grain sealed with aluminum foil. The benefit of this packaging is that each grain of fish oil is isolated the air, which is better at preventing oxidation. Unlike traditional bottled fish oils, each grain you eat must expose the other fish oils to air. In addition, the plate packaging can only clearly observe the actual color of the fish oil, but also can be cut the middle, convenient to carry.

Third: Look at the Omega-3 content

Omega-3 is mainly made up of EPA DHA. If the amount of Omega-3 is listed on the product's packaging (typically in mg), the EPA+DHA content can be used to estimate the total amount of Omega-3. In general, for medium above fish oil, Omega-3 should exceed 500 mg.

Also can: look at EPA/DHA ratio ratio about 3/2 the better.

According to the theory, the perspective of Omega-3 carriers, they were mainly divided into triglyceride (TG) ethyl esters (EE). Triglycerides are the natural molecular form of fats found in most foods. For example, Omega-3 unsaturated fatty acids are carried by TG in fish. The fish oil labeled with 30% Omega-3 content in the market also uses TG as carrier. When TG fish oil is absorbed, pancreatic lipase effectively releases two free fatty acids (FFA) one glycerol one triglyceride molecule. FFA glycerol form microglia are absorbed by intestinal epithelial cells. After entering the intestinal epithelial cells, FFA glycerol are recombined into TG, which is eventually carried into the blood by chylomicrons through the lymphatic channel. TG is therefore more readily absorbed in its natural form.