How much iron is in beef liver
Beef liver is the food people name first when iron comes up, and the number backs that up. A three-ounce serving of fresh beef liver carries about 5 mg of iron. For most adult women, the reference intake is 18 mg a day until around 50, then 8 mg, so one small serving of liver covers a real share of the day. It is not a mystery why the old kitchens prized it; the numbers were doing the work before anyone counted them.
The form matters more than the number
The iron in liver is heme iron, the form the body takes up most readily from food. Plant iron absorbs less well, which is why the same milligrams on two different labels do not mean the same thing. That is also why a label that lists iron per serving is worth more than a label that only names the organ: how to read an organ supplement label shows what to look for, and the number is the part that tells you what you are actually getting.
What the capsule holds
A dried liver capsule holds less iron than a fresh serving, because drying concentrates the organ but a capsule is small. A serving of four capsules might hold 3,000 mg of dried liver, and the iron in that is a fraction of the fresh 5 mg. The label should state iron per serving when the maker measures it; if it does not, you cannot work out the number. Dried organ weight on a label explains how to read the milligrams, and beef liver supplement for women covers the capsule route in full.
The plain takeaway
Fresh liver is the iron-rich food; the capsule is the steady, small-dose version for the weeks when cooking does not happen. Either way, read the number on the label rather than guessing from the organ name alone. A food is not a drug, and dose, diet, and starting point differ.
FAQ
How much iron is in beef liver?
A three-ounce serving of fresh beef liver carries about 5 mg of iron. For most adult women the reference intake is 18 mg a day until around 50, then 8 mg.
Is the iron in liver different from plant iron?
Yes. Liver iron is heme iron, the form the body takes up most readily from food. Plant iron absorbs less well, so the same milligrams do not mean the same thing.
How much iron is in a liver capsule?
Less than a fresh serving. A serving of four capsules might hold 3,000 mg of dried liver, and the iron in that is a fraction of the fresh 5 mg. The label should state iron per serving when the maker measures it.
These statements have not been evaluated by the FDA. Nothing on this site is intended to diagnose, treat, cure, or prevent any disease. Talk to a qualified professional before changing your diet or starting a supplement.