Note: I realize that some of these foods aren’t 100% lacking in carbs – but I consider under 1g net carbs per serving to be almost as good as zero. If this idea doesn’t fit with your way of eating, please disregard this list. Please check nutritional data labels on food before purchasing.
All these foods do not naturally contain carbohydrates, apart from those in the vegetable list which contains between 0 and 1g net carb per serving. For meats and seafood, the key is to go for unprocessed food. As soon as someone processes it (think ham, bacon, jerky, burgers) there is a higher chance that they have also added some carbs!
Pork rinds (an exception to the processed rule!)
Most types of cheese
Heavy cream (very very low carbs)
Vegetables (most contain between 0 and 1g net carb per serving):