Alcohol is metabolized differently than other foods and beverages. Under normal conditions, your body gets its energy from the calories in carbohydrates, fats and proteins, which are slowly digested and absorbed within the gastrointestinal system. However, this digestive process changes when alcohol is present. When you drink alcohol, it gets immediate attention (because it is viewed by the body as a toxin) and needs no digestion.
On an empty stomach, the alcohol molecules diffuse through the stomach wall quickly and can reach the brain and liver in minutes. This process is slower when you have food in your stomach, but as soon as that food enters the small intestine, the alcohol grabs first priority and is absorbed quickly into the bloodstream.
As the alcohol reaches the liver for processing, the liver places all of its attention on the alcohol. If you drink very slowly, all the alcohol is collected by the liver and processed immediately—avoiding all other body systems. If you drink more quickly, the liver cannot keep up with the processing needs and the alcohol continues to circulate in the body until the liver is available to process it. That's why drinking large amounts of alcohol (or drinking alcoholquickly) affect the brain centers involved with speech, vision, reasoning and judgment.
When the body is focused on processing alcohol, it is not able to properly break down foods containing carbohydrates and fat. Therefore, these calories are converted into body fat and are carried away for permanent storage on your body.
Alcohol is a diuretic, meaning that it causes water loss and dehydration. Along with this water loss you lose important minerals, such as magnesium, potassium, calcium and zinc. These minerals are vital to the maintenance of fluid balance, chemical reactions, and muscle contraction and relaxation.
Alcohol contains 7 calories per gram and offers NO nutritional value. It only adds empty calories to your diet. Why not spend your calorie budget on something healthier?
Alcohol affects your body in other negative ways. Drinking may help induce sleep, but the sleep you get isn't very deep. As a result, you get less rest, which can trigger you to eat more calories the next day. Alcohol can also increase the amount of acid that your stomach produces, causing your stomach lining to become inflamed. Over time, excessive alcohol use can lead to serious health problems, including stomach ulcers, liver disease, and heart troubles.
Alcohol lowers your inhibitions, which is detrimental to your diet plans. Alcohol actually stimulates your appetite. While you might be full from a comparable amount of calories from food, several drinks might not fill you up. On top of that, research shows that if you drink before or during a meal, both your inhibitions and willpower are reduced. In this state, you are more likely to overeat—especially greasy or fried foods—which can add to your waistline. To avoid this, wait to order that drink until you're done with your meal.
Many foods that accompany drinking (peanuts, pretzels, chips) are salty, which can make you thirsty, encouraging you to drink even more. To avoid overdrinking, sip on a glass of water in between each alcoholic beverage.
Skipping a meal to save your calories for drinks later is a bad idea. Many drinkers know they'll be having some alcohol later, whether going to a bar, party, or just kicking back at home. Knowing that drinking entails extra calories, it may be tempting to "bank" some calories by skipping a meal or two. This is a bad move. If you come to the bar hungry, you are even more likely to munch on the snacks, and drinking on an empty stomach enhances the negative effects of alcohol. If you're planning on drinking later, eat a healthy meal first. You'll feel fuller, which will stop you from overdrinking. If you are worried about a looming night out with friends, include an extra 30 minutes of exercise to balance your calories—instead of skipping a meal.
What are more important, calories or carbs? You might think that drinking liquor is more diet-friendly because it has no carbohydrates, while both wine and beer do contain carbs. But dieters need to watch calories, and liquor only has a few calories less than beer or wine. Plus, it is often mixed with other drinks, adding even more empty calories. Hard liquor contains around 100 calories per shot, so adding a mixer increases calories even more. If you are going to mix liquor with anything, opt for a diet or club soda, instead of fruit juice or regular soda. Sweeter drinks, whether liquor or wine, tend to have more sugar, and therefore more calories. In that respect, dry wines usually have fewer calories than sweet wines.
The list below breaks down the number of calories in typical alcoholic drinks. Compare some of your favorites to make a good choice next time you decide to indulge in a serving of alcohol.
| Drink | Serving Size | Calories |
| Red wine | 5 oz. | 100 |
| White wine | 5 oz. | 100 |
| Champagne | 5 oz. | 130 |
| Light beer | 12 oz. | 105 |
| Regular beer | 12 oz. | 140 |
| Dark beer | 12 oz. | 170 |
| Cosmopolitan | 3 oz. | 165 |
| Martini | 3 oz. | 205 |
| Long Island iced tea | 8 oz. | 400 |
| Gin & Tonic | 8 oz. | 175 |
| Rum & Soda | 8 oz. | 180 |
| Margarita | 8 oz. | 200 |
| Whiskey Sour | 4 oz. | 200 |
Alcohol can easily be the enemy when it comes to weight loss. It adds extra calories to your diet, encourages you to eat more food, and alters the normal digestive process. Not only are the extra calories a hindrance, but the changes in food breakdown sends turns those extra calories into unwanted body fat. Alcohol does have a bad reputation when it comes to weight loss, and rightfully so, so be smart about your alcohol choices if you're watching your weight.
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