Iron in foods: how to meet your iron needs

Iron is one of the most important nutrients in the body, yet many people don't realise they may not be getting enough of it. From supporting energy levels and concentration to helping transport oxygen throughout the body, iron plays a crucial role in everyday health. In this article, we'll explore why iron matters, how to get enough through your diet, the signs of iron deficiency, and practical steps you can take to stay on top of your iron status. 

Table of Contents

• What is iron and why is it essential?

• How to get enough iron from your diet

• Causes and signs of iron deficiency anemia

• Taking charge of your iron status at home

• Frequently asked questions about iron

Iron is a mineral that plays a vital role in maintaining good health. Its primary function is to help produce haemoglobin, a protein found in red blood cells that carries oxygen from your lungs to all parts of the body. Iron also supports healthy muscles, bone marrow, and the proper functioning of many organs. In addition, it plays a key role in the production of certain hormones that help regulate important bodily processes. 

Source: National Library of Medicine, 2024

Maintaining the right balance of iron is important. Too little iron can lead to iron-deficiency anaemia, while excessive iron levels can also have negative health effects. Understanding your iron status can help ensure your body has the amount it needs to function optimally.

How to get enough iron from your diet

Eating a varied and balanced diet is one of the best ways to meet your daily iron requirements. Iron is found in both animal-based and plant-based foods, although the body absorbs these forms differently.

Animal-based sources of iron

Heme iron is found in animal products and is generally absorbed more efficiently by the body. 

Examples include:

• Red meat: beef, lamb, veal, pork

• Poultry: chicken, turkey

• Organ meats: liver, liverwurst

• Seafood: oysters, clams, scallops, shrimp, tuna, sardines, mackerel, haddock

Source: American Red Cross, 2026

Plant-based sources of iron

Non-heme iron is found in plant foods and fortified products. While it is less readily absorbed than heme iron, it can still make a valuable contribution to your iron intake.

Examples include:

• Legumes: lentils, kidney beans, chickpeas, white beans, dried peas

• Soy products: tofu

• Leafy greens: spinach, kale, chard, collard greens, beet greens

• Vegetables: broccoli, peas, sweet potatoes, green beans

• Whole grains and fortified foods: whole wheat bread, fortified cereals, enriched pasta, enriched rice, oats

• Dried fruits: raisins, dates, figs, prunes, dried apricots

• Other sources: tomato products, molasses, maple syrup

Source: American Red Cross, 2026

Tips for improving iron absorption

The amount of iron your body absorbs depends on more than just the foods you eat. These strategies can help maximise iron absorption:

• Pair iron-rich foods with vitamin C-rich foods such as citrus fruits, berries, kiwi, tomatoes, peppers, and broccoli to boost absorption. Avoid overcooking fruits and vegetables, as this can reduce their vitamin C content.

• Combine heme iron sources (meat, poultry, fish) with non-heme iron sources (beans, lentils, leafy greens) to improve the absorption of plant-based iron.

• Avoid drinking tea, coffee, or fizzy drinks with meals, as they can reduce iron absorption.

• Consume dairy products separately from iron-rich meals when possible, as large amounts of calcium may interfere with iron uptake.

For vegetarians and vegans, paying attention to iron intake and absorption can be particularly important because plant-based iron is absorbed less efficiently. Iron requirements may also be higher during pregnancy, periods of rapid growth, heavy menstrual bleeding, or following significant blood loss, making it especially important to ensure adequate iron intake.

Source: Milton Keynes University Hospital NHS Foundation Trust, n.d.

Causes and signs of iron deficiency anemia

Iron deficiency can develop gradually and may occur for a variety of reasons. Understanding the common causes can help you identify potential risk factors.

Common causes of iron deficiency anemia

Iron deficiency anemia occurs when the body does not have enough iron to produce sufficient haemoglobin. Common causes include:

• Blood loss, such as heavy menstrual periods, stomach ulcers, gastrointestinal bleeding, or certain medications that increase bleeding risk.

• Insufficient dietary iron intake, particularly in people who do not regularly consume iron-rich foods.

• Poor iron absorption, caused by conditions such as coeliac disease or surgeries affecting the digestive tract.

• Increased iron requirements, especially during pregnancy, childhood growth spurts, and adolescence.

Signs and symptoms to watch for

Iron deficiency anemia may not always cause noticeable symptoms at first, but as it progresses, people may experience:

• Fatigue and low energy

• Weakness

• Pale skin

• Shortness of breath

• Rapid heartbeat

• Headaches, dizziness, or light-headedness

• Cold hands and feet

• Difficulty concentrating

• Sore or swollen tongue

• Brittle nails

• Restless legs syndrome

If you experience ongoing symptoms or belong to a higher-risk group, testing your iron levels can provide valuable information and help determine whether further investigation is needed.

Source: Mayo Clinic, 2025

Taking charge of your iron status at home

Being proactive about your iron status can help you better understand your nutritional health and identify potential deficiencies early. Regular monitoring may be especially useful for people at higher risk of iron deficiency, including those with heavy menstrual bleeding, pregnant women, infants and adolescents during periods of rapid growth, vegetarians and vegans, frequent blood donors, individuals with digestive disorders that affect iron absorption, and anyone experiencing symptoms associated with low iron.

At-home iron tests provide a convenient and private way to check your iron status from home. While at-home testing can be a useful tool for monitoring your health, it is important to seek medical advice if you have persistent symptoms, abnormal test results, or concerns about your iron levels. A healthcare professional can help identify the underlying cause and recommend appropriate treatment or follow-up testing.

Frequently asked questions about iron

Is it possible to get too much iron from food?

For most healthy individuals, it is uncommon to consume excessive amounts of iron through food alone. The body has natural mechanisms that help regulate iron absorption based on its needs.

However, certain individuals may be at increased risk of iron overload, including people with hereditary haemochromatosis, a genetic condition that causes the body to absorb too much iron. In these cases, excessive iron accumulation can potentially damage organs over time.

Maintaining a balanced diet and avoiding unnecessary supplementation can help support healthy iron levels. If you are concerned about high iron levels or have a family history of iron overload disorders, testing and medical guidance may be appropriate.

Souces: Mayo Clinic, 2026

Are iron supplements necessary if I eat a healthy diet?

Many people can meet their iron requirements through a balanced diet that includes a variety of iron-rich foods. For this reason, food sources are generally preferred because they provide iron alongside other beneficial nutrients.

However, some individuals may require iron supplements, including:

• People with heavy menstrual periods

• Infants and children, especially those born early, with low birth weight, or with inadequate iron intake

• Vegetarians and vegans who do not consume enough iron rich foods

• People who have had gastric bypass or other stomach surgery

• People with conditions that affect iron absorption or cause blood loss, such as celiac disease, Crohn's disease, ulcerative colitis, kidney disease, and peptic ulcers

• Frequent blood donors who may lose iron over time

Iron supplements should ideally be taken under the guidance of a healthcare professional, as unnecessary supplementation may cause side effects or lead to excessive iron levels. Testing your iron status can help determine whether supplementation is needed and support a personalised approach to maintaining healthy iron levels.

Source: Mayo Clinic, 2025