Mr. Chair, the inclusion of “and its salts” modifies nicotine because nicotine can be in different forms, so it just gets the whole set of nicotine. The rest of the phrase “in nicotine replacement therapy” is a different issue. That's what it's used for.
The caution there was just that there could be language that companies introduce to say that it's just for temporary stopping so that it doesn't fall within the measures.
We would give this a broad interpretation faithfully to say that it doesn't include, as you say, trace amounts in vegetables and so on. We understand the function of that, but the “and its salts” goes to basically the idea of nicotine, so they can't get around the youth protection. It's just to make sure that, whatever way you make it chemically, it's included.