At 9.755mg per 100g (1,084% DV), daily consumption far exceeds the tolerable upper intake level of 10mg. Copper accumulates in the liver, causing oxidative damage, nausea, abdominal pain, and over time, cirrhosis and neurological symptoms. Symptoms can appear within weeks of daily intake.
Each 100g provides 4.9mg heme iron (27% DV), which is highly bioavailable. Daily intake can push total iron beyond needs, especially in men and postmenopausal women. Excess iron deposits in organs, increasing risk of diabetes, heart disease, and liver damage. This effect compounds over months.
Although not listed, liver is notoriously rich in preformed vitamin A. Daily consumption can cause hypervitaminosis A, leading to bone pain, blurred vision, skin changes, and liver injury. Symptoms may emerge after several weeks of consistent intake.
With 20.36g protein per 100g (41% DV), raw liver supports muscle maintenance and repair. The protein and fat (3.63g) provide satiety, but the lack of fiber (0g) means no digestive bulk. This effect is immediate and positive, but not unique to liver.
Verdict
Eating raw beef liver every day is dangerous due to copper and vitamin A toxicity, and iron overload. Occasional consumption (e.g., once a week) is safer, but daily intake is not recommended.
⚠️ Who Should Avoid
- Pregnant women (vitamin A toxicity risk to fetus)
- People with hemochromatosis or iron overload disorders
- Individuals with Wilson's disease or copper metabolism issues
- Children (lower tolerance for copper and vitamin A)