Alcoholic Beverages 🇬🇧 CoFID 2021 · 17-767
✦ Roasted barley polyphenols ✦ B vitamins and folate ✦ Silicon from barley ✦ ~2.3 units per pint

Guinness draught stout is a dark Irish ale at 4.1-4.2% ABV with a distinctive creamy nitrogen-infused head. It is often assumed to be high in iron (a myth — it contains only modest amounts), but it does provide small amounts of B vitamins, folate, silicon, and antioxidant polyphenols from the roasted barley that gives it its dark colour. A pint contains around 2.3 units and 210 kcal.

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Preparation note

The iron-rich reputation of Guinness is a myth; a pint provides around 0.3mg iron — a trivial amount. Its polyphenols from roasted malt are its most nutritionally distinctive feature among mainstream beers.

Sources: NHS Alcohol units · CoFID 2021

Macronutrients per 100g

153
kJ
Energy
0.40
g
Protein
3.20
g
Carbs
3.20
g
Sugars
0.02
g
Salt

Vitamins & Minerals

Nutrient Per 100g % Daily Value* Level
Potassium 48.0 mg 2%
Phosphorus 26.0 mg 4%
Chloride 17.0 mg 2%
Magnesium 8.00 mg 2%
Folate 6.00 µg 3%
Calcium 4.00 mg 1%
Niacin (B3) 0.800 mg 5%
Iron 0.200 mg 1%
Vitamin B6 0.080 mg 6%
Pantothenic Acid (B5) 0.040 mg 1%
Riboflavin (B2) 0.030 mg 2%
Manganese 0.010 mg 1%
Vitamin A (RAE) 0.000 µg 0%
Vitamin C 0.000 mg 0%
Vitamin D 0.000 µg 0%
Trans fat 0.000 g —
Sucrose 0.000 g —
Cholesterol 0.000 mg —
Biotin (Vitamin B7) 1.00 µg 2%
Retinol (vitamin A) 0.000 µg 0%

* % Daily Value based on EU Nutrient Reference Values (NRVs). — indicates no EU NRV established.

Primary data source for this entry: McCance & Widdowson's Composition of Foods Integrated Dataset (CoFID 2021), Public Health England. Source record tag: CoFID 2021. All values are per 100g fresh weight unless stated. % Daily Values based on EU Nutrient Reference Values (NRVs) per Regulation (EU) No 1169/2011. Nutriofia is a research and information resource — nothing on this page constitutes medical advice. Page generated from Nutriofia database · Argarth Collective Ltd · Company No. 16864945.