The Claim
Heme iron, which is present in animal-based foods such as meat, fish, and poultry, is absorbed by the human intestine at a rate of 15–35% and contributes to more than 40% of total intestinal iron absorption despite constituting only 10–15% of dietary iron intake, due to its high bioavailability and relative resistance to dietary inhibitors.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Even though only a small part of the iron we eat comes from meat, fish, and poultry, our bodies absorb a lot more of that type—so much that it makes up over 40% of all the iron we actually take in.
See the scientific wording
Heme iron, found in animal products such as meat, fish, and poultry, is absorbed at a rate of 15–35% and accounts for more than 40% of total intestinal iron absorption despite making up only 10–15% of dietary iron intake, due to its high bioavailability and relative resistance to dietary inhibitors.
What the research says
1 studyStudy: Iron Absorption: Factors, Limitations, and Improvement Methods
The study talks about how your body absorbs iron from food, and says iron from meat (heme iron) is easier to absorb and isn’t blocked as much by other foods, which matches the claim.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.