JC said it so well!

You don't have to defend yourself or sing the merits of Atkins. Just politely respond as she suggested, or something to that effect. You might want to add, 'I am so thankful for a family who cares about my health! I'm feeling better every day!" Then you might want to add, "Would you like to Low Carb with me? I could use a good LC buddy!"

Let us know how it goes, will you?
Annie-Pie