The foods with the highest iron content are ranked as follows: razor clams, pork liver, beef tenderloin, chicken legs, and duck blood.

1. Razor clam: Razor clam is a kind of shellfish with white and fat flesh. The iron content of razor clams per 100 grams is as high as 33.6 mg, which is 22.4 times that of pork tenderloin.

2. Pork liver: The iron content of pork liver is as high as 23.2 mg/100g, which is better than pork and beef. It is recommended to eat about 25 grams each time, about the size of half an egg.

3. Beef tenderloin: Beef tenderloin is the tender part of beef and the most commonly used raw material for beef jerky. You can tell from the color of beef tenderloin that it contains high iron content. The iron content of beef tenderloin is nearly three times that of pig tenderloin.

4. Chicken legs: Chicken legs move more and consume more oxygen than other parts, so their heme content is higher, the meat color will be red, and the iron content is higher than other parts. , the iron content of chicken thighs is 1.8 times that of chicken breasts.

5. Duck blood: Duck blood is a must for many people to eat hot pot. Not only does it taste great, but the mineral iron and protein content is also advantageous. The iron content of duck blood is 3.5 times that of pig blood, which is 30.5mg/100g.

For the above content, refer to Baidu Encyclopedia-Razor Clam Baidu Encyclopedia-Pork Liver