Choose a keto friendly BBQ sauce that is clearly labeled no sugar added and has about 1 to 2 grams of net carbs per 2 tablespoons to keep the soup within keto macros. If your sauce is thicker or sweeter, thin it with a bit more bone broth and balance the flavor with extra apple cider vinegar instead of more sweetener. For even deeper flavor you can make the pulled pork a day ahead and chill it in its juices, then skim the solidified fat, shred the meat, and use the concentrated juices to enrich the soup. This recipe works well with leftover plain smoked pork shoulder or carnitas, but avoid using pork that was previously coated in sugary rubs or sauces. To lower the carbs further you can halve the bell peppers and onion while increasing celery, or omit the tomato paste and add more smoked paprika. Always taste and season at the end, since different broths and sauces vary widely in salt content, and add any extra heat with red pepper flakes or your favorite keto hot sauce in small increments so the spice level does not overpower the smoky BBQ profile.