Methemoglobinemia is a blood disorder in which an abnormal amount of methemoglobin -- a form of hemoglobin -- is produced. Hemoglobin is the protein in red blood cells that carries and distributes oxygen to the body.
Caffeine. One 8-ounce cup of coffee has 95 milligrams of caffeine and a 1-ounce single shot of espresso has 64 milligrams. Consuming too much caffeine can make you restless, anxious and irritable. It can also interact with certain medications. Pregnant women may need to cut back on caffeine consumption.
Plus, for the purpose of this article, Iâm going to say that a small (8oz) and medium (12oz) size drink usually has two shots of espresso and a large (16oz) drink usually has three shots. So, you do the math and figure out how much caffeine you actually consume. Just kidding, Iâll do the math.