Compare every Iron product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Essential for haemoglobin and oxygen transport
We rank Iron by price per 14mg - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
What it is
Iron is a mineral that the body needs to function. It is a key part of haemoglobin, which is the protein in your red blood cells that carries oxygen from your lungs to the rest of your body.
Why it's used
It is primarily used to support oxygen transport throughout the body. Without enough iron, the blood cannot carry oxygen effectively, which can lead to tiredness and weakness.
How it's made
Commercial iron supplements are produced by combining iron with other elements to create a stable powder. This powder is then measured and packed into capsules or pressed into tablets using industrial machinery.
What it typically costs
Iron is generally mid-range in price. This is because the raw mineral is relatively easy to source, but the cost varies depending on the specific chemical form used to make the supplement more absorbable or easier on the stomach.
Dosage by purpose
Purpose
Typical studied dose
Evidence
recovery of hemoglobin and iron in blood donors
37.5 mg per day elemental iron
emerging
treatment of anemia of chronic kidney disease
130 mg per day elemental iron twice daily
limited
reduction of iron deficiency risk in preterm and low-birthweight infants
at least 1 mg per kilogram of bodyweight per day
established
reduction of anemia and iron deficiency in children younger than 2 in low-income countries
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
We rank Iron by price per 14mg - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Are these prices verified?
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are Iron prices updated?
Prices across our retailer network are refreshed at least daily.