Omega 3 fish oil can be of many forms. It can be in tablets, liquids, and capsule form. The liquid form has shorter shelf-life compared to the other 2 forms. It is more likely to easily become rancid. And rancid Omega 3 fish oils are bad for the human health for the reason that it contains some free radicals.
Taking the right dosage of Omega 3 fish oils is also important to consider. But getting the exact dosage in liquid fish oils is difficult and besides the liquid form has bad taste and bad smell. So far the capsules are the best choice in selecting the best Omega 3 fish oils. In capsule form, the fish oil has long shelf-life and the dosage is more accurate. In addition, capsules are tasteless, easy to swallow and odorless. For the tablet form, manufacturers mix it with additives which reduce the nutritional value of the fish oil.