naturaltein ultimate omega 3

I had taken Omega 3 supplements from - wow science - mild fishy burp ( not sure on authenticity) - tata 1mg - No fish burp ( not sure about the authenticity)

From this month onwards- I am trying naturaltein ultimate omega 3 supplements ( which is Trustified approved) but the only problem is fishy burp after eating

I am vegetarian hence I don’t like this fishy burp.

Anyone else experience continue fishy burp after eating Naturaltein omega 3. I am thinking to move again tata 1mg triple strength omega 3 now.