Described herein are pharmaceutical compositions providing enhanced bioavailability of polyunsaturated fatty acids and methods of manufacturing the same. In particular, described herein are pharmaceutical compositions comprising soft enteric capsules that provide enhanced bioavailability of omega-3 polyunsaturated fatty acids. The oral pharmaceutical compositions described herein are useful as nutritional supplements or for the treatment of cardiovascular-related diseases, such as hyper dyslipidemia and moderate to high triglyceride levels.