Because too many people asked “How many carbs in this recipe?” or “What should I eat for dinner?” Once a page reaches the size of the Low Carb Zen Facebook page, these kinds of queries become overwhelming to manage. So the private messages got turned off.
If you have a low carb related question, please post it to the wall. If you need to get in touch with Dixie (page owner) personally and privately, then use the contact form here. Thanks for understanding.