You are doing Atkins, & doing it right from the sounds. What she is doing is NOT Atkins, not even close. It's people like her who give Atkins a bad name. She clearly has no understanding of the plan, & if people think that's what Atkins is then of course they'll say it's not healthy- because what she's doing is not healthy. In the end you'll lose the weight & be able to keep it off, while she may lose it she'll quickly gain it back & probably more. Stick with what you're doing be patient, & ignore her. If anyone questions you explain how Atkins really works. If you like the co-worker, then suggest she read the book & learn the real Atkins program. Good luck.
God Bless,
Amy-Lynne