Porters are typically not considered low carb beers as they tend to have a higher carbohydrate content than other styles of beer- Most porters have over 13 grams of carbs per 12 oz. serving. However, some craft breweries have created low carb versions of porters by using specialty malts and brewing techniques that reduce the overall carbohydrate content of the beer. It's important to check the nutritional information of each individual porter to determine its specific carbohydrate content.