A decidedly not very fishy tasting fish, Tilapia is mild-flavored making it an easy choice for the beginners. When it comes nutrients, vitamins, and minerals, you have hit the motherlode. It contains a high percentage of protein, omega-3 fatty acids, selenium, phosphorus, potassium, vitamin B12, Niacin and vitamin B6. With such a healthy composition, Tilapia aids in improved weight loss and muscles building.