Iron deficiency is becoming increasingly widespread and a growing concern. However, it is a preventable and treatable condition through proper diet. Meat and organ meats can help.

Iron deficiency affects over 1.6 billion people worldwide, particularly those in vulnerable groups such as women and children. It is a silent and devastating global health crisis. Insufficient iron levels impair the production of haemoglobin, the protein in red blood cells that carries oxygen around the body.

The most common consequence of iron deficiency is iron deficiency anaemia, which is caused by a reduction in the number of red blood cells and their ability to carry oxygen. Symptoms can include tiredness, paleness, weakness, dizziness, brittle nails and hair loss. More serious consequences can include susceptibility to infections and impaired cognitive development.

Iron deficiency, global plague

A longitudinal study conducted in Ireland found that the prevalence of iron deficiency among pregnant women increased to 51.2% by the third trimester. In the United States, a study reported that nearly 40% of young women aged 12–21 are iron-deficient. The situation is likely to be even more critical in developing countries. In sub-Saharan Africa, for example, approximately 40.5% of women of reproductive age suffer from anaemia, which contributes to high maternal mortality rates. In many African nations, around 40% of children under five suffer from anaemia, which can have permanent negative effects on their health and development.

Iron deficiency in children is also a serious issue in Southeast Asia and Latin America, where it has been directly associated with stunted growth, poor academic performance, and a weakened immune system. In India, more than half of pregnant women are iron-deficient, which leads to a high risk of complications during childbirth, low birth weight and premature death.

One of the main causes of this deficiency is limited access to nutrient-rich animal-sourced foods, thus perpetuating the cycle of malnutrition and anaemia. However, in high-income countries, a similar phenomenon is observed despite greater access to these foods: many people voluntarily exclude animal-source foods, starting with red meat, and consume highly processed foods that are low in essential nutrients, thus exacerbating the spread of iron deficiency.

The most vulnerable categories

Women of childbearing age, particularly those who are pregnant, are particularly vulnerable to iron deficiency due to the significant increase in their needs caused by monthly blood loss during menstruation and the high iron demand during pregnancy. Children and adolescents also require an increased iron intake to support the rapid physical and cognitive development that characterises these life stages. Iron deficiency during these critical periods can result in growth delays, weakened immunity, and long-term cognitive impairment.

Additionally, those following a vegetarian or vegan diet may struggle to obtain enough iron, as the non-heme iron found in plant sources is less bioavailable than the heme iron found in animal-based foods. For these reasons, iron supplementation is highly recommended for those following a plant-based diet.

How to prevent and manage iron deficiency

Foods rich in heme iron, which is easily absorbed and utilised by the body, such as red meat, offal, fish and seafood, play a crucial role in preventing and treating iron deficiency anaemia. These foods are also rich in essential nutrients that support iron absorption and metabolism, including vitamin B12, vitamin A and high-quality protein.

Red meat and offal in particular stand out for their high concentrations of bioavailable iron. For example, 100 grams of beef spleen contains 42 milligrams of iron, while 100 grams of pork liver contains 18 milligrams, which is significantly higher than the daily requirement. This makes these foods natural supplements. Beef, lamb, pork, and even white poultry meat, especially thighs, provide significant amounts of heme iron, making them among the most effective foods for maintaining adequate iron levels in the body. Regular consumption of these foods is an effective dietary strategy for preventing or managing iron deficiency, which significantly reduces the risk of anaemia and promotes overall well-being.

A public health emergency that can no longer be ignored

Rather than eliminating entire food groups, it is essential to promote adequate meat consumption through nutrition education programmes and public awareness campaigns. This will ensure that people understand the dangers of giving up iron-rich foods and learn how to incorporate them healthily into their diet.

Even low-income populations must have access to nutritious animal foods to combat iron deficiency on a global scale. Iron deficiency is a public health emergency that cannot be ignored any longer; governments and policymakers must take concrete action to ensure that the most vulnerable populations receive adequate nutrition.