Products that use splenda instead of the "other" stuff are ok on the most part. You might consider keeping it low volume until you're past induction as the "sweet" flavor may lead to cravings. Induction is THE hardest part of Atkins because you're kicking the carbs. Why tempt yourself or make it harder? Besides, induction is geared towards 2 weeks. Once you get past that time frame it should be somewhat safer for you.

Good luck!