Pharmaceutical grade fish oil is extremely purified and it is a more concentrated version of fish oil. It does not have the dangerous toxins that can be in fish, and it is clinically tested. This kind of fish oil is 2 to 3 times more potent and 100 times more pure than lower grade fish oils, and it is extremely good for you! The reason why we take fish oil is because they have the omega-3 fatty acids that are very important for our bodies. It is proven that a diet that has a lot of omega 3 fatty acids promote a healthy heart, brain, immune system, kidneys, and much more. It also helps balance stress and stamina. Another reason why people take pharmaceutical grade fish oil, is because it helps keep cholesterol in normal ranges. Lower grade fish oil does the same thing, but it is not as pure. The more pure the oil is, the less it will taste like fish. You will notice that the fish oils are in the thick capsules, well that is because the oil does not taste too great. If you take some pills and burp 10 minutes later, you will get a taste of it. Some people think that eating more fish will produce the same results as taking the fish oil supplements. You would have to eat a lot of fish, and sometimes the fish can contain mercury, dioxin, and other toxins. You can easily find pharmaceutical grade fish oil and buy it online. Do a little shopping around first so you can find the best deals. Some of the places might offer you free shipping, so remember that when you are trying to figure out how much it will cost.