IMPOSSIBREW vs Guinness 0.0 | Lager vs Stout Comparison

Functional Lager vs Zero Stout

IMPOSSIBREW Enhanced Lager and Guinness 0.0 are two of the most talked-about alcohol-free options in the UK, but they come from completely different directions. IMPOSSIBREW is a functional lager brewed with 375mg of the Social Blend formula (L-Theanine, Ashwagandha, Vitamin B1 and Magnesium). Guinness 0.0 is a zero-alcohol stout from one of the world's most iconic beer brands. This page compares them side by side.

Side-by-Side Comparison

IMPOSSIBREW Guinness 0.0
Style Lager Stout
ABV 0.5% 0.0%
Calories (per 100ml) 15 kcal 17 kcal
Sugar (per 100ml) Less than 1g 2.7g
Nootropics / Adaptogens ✓ 375mg Social Blend ✗ None
L-Theanine
Ashwagandha
Gluten Free ✓ (Lager)
Brand / origin UK brewed brand Guinness (Dublin, Ireland)
Availability Primarily direct-to-consumer Widely available in supermarkets, pubs and convenience stores

Key Differences

Different Styles, Different Occasions

IMPOSSIBREW is an Enhanced Lager. Guinness 0.0 is a stout. That alone changes the drinking occasion. The lager is lighter and more versatile across meals, social settings and warm weather. The stout is richer and heavier, suited to colder months and pub-style drinking. This is not a like-for-like comparison, but it reflects a real decision many alcohol-free shoppers face.

Functional Ingredients vs Traditional Brewing

IMPOSSIBREW contains 375mg of the Social Blend formula, combining L-Theanine, Ashwagandha, Vitamin B1 and Magnesium. Guinness 0.0 takes a traditional approach with no functional ingredients added. Both are brewed to be alcohol-free, but IMPOSSIBREW is designed to support a relaxed, social feeling beyond just taste.

Sugar Content

There is a notable difference in sugar. IMPOSSIBREW Enhanced Lager has less than 1g of sugar per 100ml. Guinness 0.0 has 2.7g per 100ml. This is partly because fructose is added during Guinness 0.0 production to replace flavour lost during alcohol removal. For anyone watching sugar intake, this is a meaningful gap.

Alcohol Level

Guinness 0.0 is exactly 0.0% ABV. IMPOSSIBREW Enhanced Lager is 0.5% ABV, within the UK alcohol-free category. For anyone who requires strictly zero alcohol, Guinness 0.0 meets that threshold. For most shoppers, the difference between 0.0% and 0.5% has no practical effect.

What Customers Say

"I drink every night. I've done this for over a decade. Since I bought the lager from Impossibrew I have not drank on 3 nights and managed with only 2 pints for several others. All drink is now out of my house replaced with this. It seems to taste and feel best on an empty stomach. I have tried nearly every other sort. This works for me."
- IMPOSSIBREW customer, Judge.me (Enhanced Lager)
"I did Dry January with the help of Impossibrew. It's nearly March and I have no desire to drink. I love an Impossibrew lager when I'm cooking dinner. It definitely makes me feel calmer when I get in from work."
- IMPOSSIBREW customer, Judge.me (Lager)

Frequently Asked Questions

Is IMPOSSIBREW better than Guinness 0.0?
They are different styles. IMPOSSIBREW is a lager with functional ingredients designed to support relaxation. Guinness 0.0 is a traditional stout without functional ingredients. If you want a lighter, functional option, IMPOSSIBREW fits better. If you want a rich stout experience, Guinness 0.0 is the choice.
Which has less sugar, IMPOSSIBREW or Guinness 0.0?
IMPOSSIBREW Enhanced Lager has less than 1g sugar per 100ml. Guinness 0.0 has 2.7g per 100ml, partly due to added fructose.
Is Guinness 0.0 gluten free?
No. Guinness 0.0 is brewed with barley and is not gluten free. IMPOSSIBREW Enhanced Lager is gluten free.
Does IMPOSSIBREW have adaptogens?
Yes. IMPOSSIBREW contains 375mg of the Social Blend formula including L-Theanine and Ashwagandha, which are adaptogens associated with relaxation and stress reduction. Guinness 0.0 does not contain adaptogens.
Can you feel a buzz from IMPOSSIBREW?
Many customers report feeling calmer and more social after drinking IMPOSSIBREW, which they attribute to the Social Blend formula. Guinness 0.0 does not contain any comparable functional ingredients.

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