I confirm that smoked mackeral is absolutely fine... all oily fish is great for us just, if you're buying tinned versions ever, avoid those in oil / sauces etc. Find natural ones.
Sugar free jellies are fine. I read somewhere to make themselves up yourself rather than buying the ready made ones for fewer carbs. They're cheaper anyway and as people often complain at the cost of this diet, why not make them up. Three portions per day ok, and one sachet makes four, I believe.