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Considerable research on red wine, and some on beer and white wine, indicates that one drink a day can help protect against stroke, coronary artery disease, dementia, and other diseases. Some studies suggest that drinking in moderation can actually help deflate a beer belly: In a recent study of 8,000 people, Texas Tech University researchers determined that those who downed a daily drink were 54 percent less likely to have a weight problem than teetotalers. Between one and two drinks a day results in a 41 percent risk reduction. But that's where the trend ends. Consumption of three or more daily drinks increases your risk of obesity, says the study.

And therein lies the rub. If you can limit yourself to one or two a day, then you can get the health benefits without too many extra calories—if you choose wisely. Here's a rundown of what, exactly, you're really getting each time you reach for a cold one. We analyzed 40 different beers and listed them from worst to best based on calories and carbohydrate content—the two major nutritional factors at play when analyzing alcohol. The top 5 best and worst beers health-wise are after the jump.

 The 5 Best Beers

1. MGD 64

64 calories

2 g carbohydrates

2.8% alcohol

It’s right on the bottle: Only 64 calories. And it claims the number one spot over Beck’s Premier Light because it’s a little lower in alcohol content. And that’s the politically correct choice, right?

2. Beck's Premier Light

64 calories

4 g carbohydrates

3.8% alcohol

Even though it’s one of the lowest calorie beers on the market, it has nearly as much alcohol as its competitors. So don’t forget that. Here’s why: University of Washington scientists found that even just one or two alcoholic drinks can make you more likely to hone in on just one thing, which can impair your driving. For example, you may be so focused on going the correct speed, that you’re more prone to miss bounding deer or braking cars.

3. Michelob Ultra

95 calories

3 g carbohydrates

4.2% alcohol

Michelob was one of the first to market a “low-carb” beer. But here’s a secret: Almost all the low-calorie brews are relatively close in carb count. (Sam Adams Light and Yuengling Lager Light are the notable exceptions.) Just look at the label. Which is exactly what you should be doing for anything you eat and drink.

You need appetizers and meat to go with that beer. Here are some great guy meals you can make at home that won’t break your bank, or your wallet...

4. Amstel Light

95 calories

6 g carbohydrates

3.5% alcohol

No frills here. Just a good beer that won’t fill you out.

5. Miller Lite

96 calories

3 g carbohydrates

4.2% alcohol

Every bar has Miller Lite on tap for a reason. When in doubt, here's your order.

The five worst beers to order after the jump…