Most people won't jump on the band wagon until they are really ready to lose weight. Ask him to read the book. Sometimes that helps people get motivated. He just may not be ready. My advise is you keep doing Atkins. When he sees what great results you are having he may want to join you. And like Alhana said, if you are the cook make him a LC meals. But don't tell him it's LC until after the meal. Meat and veggies how can you go wrong.