Guinness Diet

Despite claims, you shouldn't try to survive solely on Guinness.
Image Credit: Ilya S. Savenok/Getty Images Entertainment/GettyImages

Some people might think there's nothing better than a beer diet. And if it consists of Guinness, it's an added bonus for them. Famous worldwide for its bold taste and body, Guinness is a stout beer created in Dublin, Ireland, in 1759. It was first brewed in the St. James Brewery.


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Through the decades, advertisements have claimed health benefits. As early as 1931, the "Good for You" campaign ran: "Seven glasses, seven days of the week and seven beneficial reasons to drink Guinness (for strength, nerves, digestion, exhaustion, sleeplessness, tonic effects and the blood)."


In Ireland, blood donors and post-operative patients are given a pint of Guinness to help them recover, according to, exemplifying the health belief associated with Guinness.

But, making Guinness the core of your diet to promote your health is quite a stretch.


What's the Guinness Diet?

The Guinness diet is a liquid diet that consists of only drinking Guinness for nutrition and sustenance. No other foods are consumed due to the belief that Guinness is nutritionally complete in itself.


The diet is not promoted by the Guinness company or by any reputable lifestyle health or diet companies, but rather appears to be a beer myth. Moreover, any weight loss experienced by this so-called diet is likely water loss and due to the fact that you're not really consuming any solid food.

Guinness Brews

Guinness brews are a staple in the diet. Types of Guinness beer that you may be familiar with include Guinness Original Stout Draft, Guinness Extra Stout, Foreign Extra Stout and Guinness Draught. Stouts tend to be more bitter due to the fact that they contain additional hops in their ingredients.

Nutrition Information

A 12-ounce serving of Guinness Draft contains 125 calories, approximately 10 grams of carbohydrates, and one gram of protein, according to LIVESTRONG's food database MyPlate. It has an alcohol content of 4.2 percent.

A 12-ounce serving of Guinness Extra Stout contains 153 calories, 17.4 grams of carbohydrates, one gram of protein and an alcohol content by volume of 4.27 percent, according to MyPlate and And a 12-ounce serving of Foreign Extra Stout contains approximately 225 calories and an alcohol content by volume of 7.5 percent, according to

As far as other nutrients, though, Guinness only has trace amounts. It does have a little calcium, the entire complex of B vitamins — except B12 — and 0.3 milligrams of iron per pint. Guinness is also rich in antioxidants, which help fight inflammation in the body.

Although it's nice that a beer can offer a little nutrition, this isn't enough to carry you through life with a healthy body. You need a variety of foods to get the full array of vitamins and minerals you need to support your internal organs, smooth skin and hair and strong muscles.

Read more: How to Lose Weight if You Like to Drink Beer?


Despite claims that this thick and dark Irish brew is nutritionally complete, the drink obviously lacks essential nutrients and components of a regular, solid food diet. This diet does not provide essential building blocks for the body, such as protein and fats.

Moreover, the Guinness diet certainly does not adhere to the health adage of moderate consumption of alcohol. Specifically, the recommended amount of alcohol for an American woman is one drink daily, and two drinks for an American man, according to the U.S. Dietary Guidelines for Americans. Drinking more can compromise your health.

Read more: Does Beer Slow Down the Metabolism?

More About MyPlate

The free LIVESTRONG MyPlate calorie tracker app for iPhone and Android has helped millions of people lose weight the healthy way — by getting support from an active community as they track their eating and exercise. Consistently a top-rated app, MyPlate offers the latest technology in an easy-to-use tool that includes millions of foods and recipes, 5-minute in-app workouts and a robust support community.


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