Certain types of alcohol can fit into a low-carb diet when consumed in moderation. For instance, wine and light beer are both relatively low in carbs, with just 3–4 grams per serving. Meanwhile, pure forms of liquor like rum, whiskey, gin and vodka are all completely carb-free.
The hops, yeast, and grains in beer contribute carbohydrates, a small amount of B vitamins, and potassium. Drinking too much beer, or any other type of alcohol, is bad for you. "Heavy alcohol consumption wipes out any health benefit and increases risk of liver cancer, cirrhosis, alcoholism, and obesity," Rimm says.
Wine, light beer and pure forms of alcohol — such as whiskey, rum and gin — offer few or zero carbs per serving and are easily paired with low-carb mixers like seltzer, diet soda or sugar-free tonic water.
While Bamforth is correct that beer is lower in carbs compared with, say, bread, it has lots more carbs than wine. A standard 5-ounce glass of wine contains just 1 or 2 grams of carbohydrates. A 12-ounce serving of a 5 percent-alcohol beer has between 10 and 20 grams of carbs — or 40 to 80 extra calories.
The sugar content in beer is lower than in wine or liquor, but beer has a higher carbohydrate content per serving. Regular beer has 12 grams of carbohydrate per serving, but zero grams of sugar.
The highest is Modelo Especial Chelada, which comes in a 24-ounce serving and contains a whopping 35.4 grams of carbs.