The truth is that Guinness contains around 0.3mg of iron per pint, which isn't significant enough to be of any health benefit, whether you've just donated blood or not. Men need 8.7mg per day, while women need 14.8mg. read more
A pint of Guinness beer has 0.3 milligrams of iron, or about 3 percent of an adult's daily recommended iron intake, according to the Daily Mail. The dark beer also has 210 calories and 17 grams of carbohydrates, or 6 percent of the daily recommended value. read more
Rich in iron and antioxidant compounds, a 20-ounce pint of Guinness is a mere 210 calories. Compare that to a 150-calorie glass of milk, and you’ve got yourself a healthy sip, rich enough to make the angels sing. read more
The original myth goes something like this: “Irish women should drink Guinness beer during pregnancy because it is a good source or iron”. Note: there is an increased requirement for iron during pregnancy. read more