I'll assume you're referring to the Specific Carbohydrate Diet (instead of "selective", however it's the same principle
Unfortunately neither of the supplements you mentioned are "legal" or allowed on the diet. Here's a link to what's legal and illegal on the diet:
You should check out the book if you haven't already. If you're interested there's a yahoo group where you can post questions. The people are really nice and very helpful:
Good luck with the diet. I hope it works well for you!