How Many Calories in Guinness Zero

Guinness Zero, officially called Guinness 0.0, is the alcohol-free version of the iconic Irish stout. It’s designed to replicate the signature flavour and creamy mouthfeel of classic Guinness, but without the alcohol. As more people look to cut back on drinking or explore low-calorie options, Guinness Zero has become a popular choice. But just how many calories does it contain and how does it compare to the original?

Calories in Guinness Zero by Serving Size

A 330ml bottle of Guinness Zero contains just 75 calories. This is significantly lower than a standard pint of regular Guinness Draught, which comes in at around 210 calories per 568ml pint. The reduced calorie content is mainly due to the removal of alcohol, which is one of the most energy-dense ingredients in alcoholic drinks.

If you're pouring Guinness Zero into a pint glass, a full 568ml serving would total approximately 130 calories, depending on pour accuracy and serving temperature. It offers the dark colour, roasted malt notes and creamy head of traditional Guinness, but with less than half the calories and no alcohol.

Nutritional Breakdown of Guinness Zero

Guinness Zero contains moderate carbohydrates, around 16 grams per 330ml bottle, and virtually zero fat or protein. The sugars are low—roughly 1 to 2 grams per bottle, depending on the batch and any residual malt content.

Since it is brewed using water, barley, roasted malt, hops and yeast before undergoing a gentle alcohol removal process, it retains many of the flavour compounds and some nutritional elements found in regular beer, minus the ethanol. It contains small amounts of B vitamins and minerals such as potassium and magnesium, though in negligible amounts for daily intake.

The drink is also low in alcohol, containing 0.0% ABV, making it suitable for those avoiding alcohol entirely due to health, lifestyle or religious reasons.

Benefits of Drinking Guinness Zero

The key advantage of Guinness Zero is that it delivers the taste of a classic stout without the alcohol and with fewer calories. For people who enjoy the flavour of dark beer but are trying to cut back on drinking, this is a practical and satisfying alternative.

It’s also a useful option for drivers, athletes, or individuals who want to participate in social events without alcohol. With only 75 calories per bottle, it fits easily into most calorie-controlled diets and can help reduce your overall energy intake if you’re swapping it in for regular beer.

Unlike many soft drinks or alcohol-free lagers, Guinness Zero isn’t loaded with sugar, making it a more blood sugar–friendly option for people monitoring carbohydrate intake.

Downsides of Drinking Guinness Zero

While Guinness Zero avoids the problems associated with alcohol such as liver strain, dehydration and impaired judgement it still contains carbohydrates and calories, which matter if you're trying to maintain a low-carb or ketogenic diet.

Its flavour, although similar to regular Guinness, may not fully satisfy long-time beer drinkers who are used to the alcohol presence. Some may find the taste slightly flatter or less complex, though for many, the difference is minimal.

As a malt-based drink, Guinness Zero is not gluten-free and may not be suitable for those with coeliac disease or gluten sensitivity, depending on individual tolerance levels and manufacturing standards.

How Guinness Zero Fits Into Your Diet

Guinness Zero can be a smart way to enjoy the experience of drinking a stout without derailing your diet. With only 75 calories per bottle and no alcohol, it provides the richness of beer without the associated risks or energy load.

It’s ideal for those trying to cut back on drinking, lose weight, or manage blood sugar without giving up on the social aspect of enjoying a pint. As part of a balanced diet, one or two bottles of Guinness Zero can be enjoyed without significant impact especially when compared to full-strength beers, wines or spirits.

If you're monitoring carbohydrate intake, keep in mind that it still contains malt-derived sugars, and pair it with high-fibre, low-GI meals to keep your blood sugar stable.

Glycaemic Index of Guinness Zero

Guinness Zero has not been officially assigned a glycaemic index but based on its carbohydrate content and low sugar profile, it is expected to have a low to moderate GI. The fermentation and alcohol-removal process break down many of the original sugars, and the remaining carbs are slowly digested.

This makes it a more stable option than sugary soft drinks or alcoholic beers, which can cause sharper spikes in blood sugar. However, if you are diabetic or following a strict low-GI plan, it’s still important to consider total carbs in your meal or drink choices.

How Guinness Zero Is Made and What It Contains

Guinness Zero is brewed in much the same way as classic Guinness, using water, barley, roasted malt, hops and yeast. After the brewing and fermentation stages, the alcohol is removed using a cold filtration process that preserves flavour while eliminating ethanol.

The result is a stout that retains the deep, roasted taste of Guinness Draught, with notes of coffee, chocolate and a slightly bitter finish. It is free from alcohol but still contains carbonation, natural flavours and a small amount of malt sugars.

It’s suitable for vegetarians and often marketed as a lifestyle-friendly drink for those who want to enjoy beer responsibly without compromising their health goals.

Healthy Alternatives to Guinness Zero

If you want a low-calorie, alcohol-free alternative with fewer carbs, sparkling water, kombucha or herbal iced teas can be good replacements. For those looking for a similar flavour profile, alcohol-free dark beers from other brands like Erdinger, Big Drop or Heineken 0.0 offer variety with similar nutritional profiles.

If you’re cutting carbs, light beers or low-carb alcoholic seltzers may offer fewer grams of sugar, though they still contain alcohol and may not be as filling or flavourful as Guinness Zero.

Summary

A 330ml bottle of Guinness Zero contains approximately 75 calories, with no alcohol, low sugar and moderate carbohydrates. It delivers the familiar taste of a dark stout while avoiding the downsides of alcohol, making it a smart option for those who want to reduce their intake without giving up the pub experience. While not entirely calorie-free, Guinness Zero is far lighter than most beers and can easily be included in a balanced diet. Whether you're cutting back, driving or simply looking for a healthier alternative to alcohol, it's a satisfying and responsible choice.