Alcohol can be part of a low carb or keto diet. It helps to have an understanding of how alcohol is metabolized in these diets however (i.e., you often will feel it quicker). It also helps to understand where the relative carbs are with various spirits and wines. For the most part, if you avoid sugary mixers and flavored spirits you should be able to socialize and enjoy alcohol with a low carb diet lifestyle. Keto also!
Although alcohol is often lumped in with carbohydrate, it acts differently in the body. For one thing, when there is alcohol in the body, its calories are used first for energy, before carbohydrate or fat.
It can also have some unpredictable effects on blood sugar. This is because when alcohol is present, the liver goes to work on it immediately. The liver’s job is to get rid of toxins in the body, and alcohol is like a poison in that way. While the liver is working on breaking down the alcohol, it isn’t doing its other jobs as well, including regulating the amount of glucose in the blood. So blood glucose can drop quickly. To minimize this, don’t drink on an empty stomach, and limit alcohol to two drinks per day for a man, or one drink for a woman. (A drink is 12-ounce beer, 4-ounce wine, or a jigger of distilled alcohol.)
There is some confusion about maltose in beer because of things written in some low-carb diet books. Although the malted barley used to make beer produces maltose, a sugar that has a glycemic index higher than glucose, the fermentation process uses up all the maltose in the beer while it is being brewed. The USDA database shows that there is no maltose in beer. However, there is carbohydrate in beer that should be counted as you would count any other carb. The amount varies depending upon the brand of beer. Regular beer averages about 12 grams of carbohydrate per 12 oz can or serving.
Light beer isn’t necessarily low-carb beer -– some light beer has almost as much carbohydrate as regular beer. Most, though, is in the range of 3 to 7 grams of carbohydrate per serving. Read each label when deciding.
Ale generally has somewhat less carbohydrate than regular beer (5-9 grams per serving), whereas stout is the worst kind of beer you can drink on a low-carb diet –- it has around 20 grams of carb per 12-oz serving.
Basically a 3.5 oz glass of wine, red or white, has around 91 g of water, 9.6 g of alcohol, 73 calories and 1.2 g of “carbohydrates by difference”. There aren’t actually ANY carbohydrates in wine, but that ‘leftover’ amount is the glyerine in the wine that sort of acts like a carbohydrate. It just doesn’t raise the blood sugar.
Wines have very FEW carbs in them at all, and the calories in wine come from the alcohol. The end result is that the wine which is higher in alcohol is the one that will be higher in “carb equivalents”.
So you could say that a wine of 14% gives you 2 carbs and a wine of maybe 10% gives you 1 carb. The net result is that a glass of wine gives you “under 2g of “carb-like substances”.
The Atkins diet has reversed their recommendations on no wine, and it might not be long before they fully endorse wine drinking as a non-carb-counting activity, because of how it raises your HDL and lowers your blood sugar levels. Both of these would be quite important to a diet that’s high in fat, and wants to keep even blood sugar levels!