Fish Oil Vitamins I Want To Start Taking Fish Oil Vitamins...?

I want to start taking fish oil vitamins...? - fish oil vitamins

I want to start taking vitamins and fish oil, but I'm not sure what type of adoption, have dual power and all the other crap, it's as if the party to Question 2:

What are the differences in the fish oil, what kind of difference is what they are doing, and what side effects? I will first smell of fish? Thank you for your help!