Do You Get Enough Iron in Your Paleo Diet?
Have you had your iron levels checked? Women especially need to be careful to ensure their diet contains sufficient levels, as deficiency can be dangerous.
What Does Iron Do?
As part of hemoglobin, iron plays an important role in the transport of oxygen around the body from the lungs to the other organs. It is also part of the process to produce new blood cells within the body and helps to remove carbon dioxide from the organs.
As well as these important functions, it helps to convert blood sugar to energy and is essential for the production of enzymes within the digestive system. Iron also plays an important role in the immune system and the recovery process after illness or strenuous exercise.
Food Sources of Iron
Most red meats are very good sources of iron particularly beef and lamb. However, the best meat to boost your supply is liver. A 100g serving of liver will provide over 100% of your recommended daily amount of the important dietary nutrient.
Mollusks are another great source of iron, with even higher concentrations than liver. You have a choice of several tasty mollusks, including:
- Clams
- Mussels
- Oysters
- Shrimp
- Cuttlefish
- Octopus
Animals are not the only good sources of iron. Plenty of dark leafy vegetables contain good quantities of this important element. Spinach is the best, with 100g providing 20% of your daily value. Swiss chard, turnip greens and kale are other vegetables that can help to boost your iron levels.
Another source that is easy to overlook is dark chocolate. Nuts and pumpkin seeds are also great sources of iron, and make tasty snacks. You can use these to beat your chocolate cravings!
Problems Associated with Iron Intake
One of the main symptoms of iron deficiency is anaemia. This occurs when the stores of iron in the body deplete and it is no longer possible to maintain haemoglobin levels in the blood. This particularly affects children and pre-menopausal women. The common symptoms of anaemia include:
- Fatigue
- Dizziness
- Pallor
- Hair loss
- Irritability
- Weakness
In extreme cases, deficiency can be fatal so it is important to ensure you consume sufficient quantities of this essential nutrient. Usually though, an increase in iron intake will restore your iron levels to normal.
Iron overdose is also potentially fatal, and often the first symptoms are stomach ulcers, followed by nausea and vomiting. The pain can then abate before the iron passes into the internal organs, particularly the brain and liver.
Iron is an extremely important nutrient that plays an important role within your body. Avoid the risk of anaemia and deficiency by making sure you eat plenty of the great iron-rich foods. This will keep your body in top shape and you will certainly feel better for it.
How Iron Absorption Works
Understanding how your body absorbs iron is crucial for making the most of the iron-rich foods in your diet. There are two types of iron: haem iron, which comes from animal products, and non-haem iron, which is found in plant-based sources. Haem iron is far more easily absorbed by the body, which is why meat sources are generally more effective in boosting your iron levels.
However, certain food pairings can enhance or inhibit the absorption of iron. For example, consuming foods rich in vitamin C alongside iron-rich foods can significantly increase non-haem iron absorption. A squeeze of lemon juice over sautéed spinach or a side of capsicum with your steak can make a noticeable difference. Conversely, tannins found in tea and coffee, calcium in dairy, and phytates in some grains can inhibit absorption if consumed at the same time as iron-rich meals.
Signs Your Iron May Be Low
In addition to clinical symptoms like fatigue and pallor, there are other subtle signs that your iron levels might be less than optimal. These include:
- Shortness of breath during mild activity
- Cold hands and feet
- Frequent headaches
- Restless legs, particularly at night
- Brittle nails or spoon-shaped nails
- Cravings for non-food items like ice or dirt (a condition known as pica)
If you’re noticing any of these signs, it might be time to request a blood test from your GP. In Australia, a basic iron study is often bulk-billed, making it easy to stay on top of your health without added costs.
Who is Most at Risk of Iron Deficiency?
While anyone can become iron deficient, certain groups are more vulnerable:
- Women of childbearing age – due to monthly blood loss from menstruation
- Pregnant women – who have increased iron needs to support the growing baby
- Vegetarians and vegans – as plant-based diets may not include enough highly bioavailable iron
- Athletes – especially long-distance runners, due to increased red blood cell turnover
- People with gastrointestinal conditions – such as Coeliac disease or IBS, which can affect nutrient absorption
Understanding your personal risk factors can help you make better dietary and lifestyle choices to support your iron levels.
Supplements: When Food Isn’t Enough
While getting nutrients through whole foods is generally preferred, there are situations where iron supplementation is necessary. This should only be done under medical supervision, as iron supplements can be harsh on the digestive system and may cause constipation or nausea.
Iron supplements are typically prescribed in the form of ferrous sulfate, ferrous gluconate, or ferrous fumarate. Some people may respond better to one type over another, so it’s worth discussing options with your healthcare provider. If you’re Paleo and already eating plenty of meat and leafy greens, supplements may not be necessary—but it’s always best to check with a professional if you have any concerns.
Boosting Iron Naturally
If you want to keep things as natural as possible, here are some easy ways to get more iron into your everyday Paleo meals:
- Add sautéed chicken liver to minced meat dishes or pâté to your lunchbox
- Top salads with grilled lamb or beef strips, sunflower seeds, and lemon dressing
- Snack on a small piece of dark chocolate (minimum 70% cacao) and a handful of raw pumpkin seeds
- Include more iron-rich leafy greens like kale and beet greens in your daily meals
- Use cast iron cookware, which can slightly increase the iron content of your meals
These simple swaps and additions can make a big difference to your overall iron intake without needing to overhaul your diet.
Getting Your Iron Levels Tested in Australia
If you’re unsure where you stand, it’s worth booking in with your GP for a simple blood test. A full iron study will usually include serum iron, transferrin saturation, ferritin, and total iron-binding capacity. Ferritin is often the most telling marker, as it reflects stored iron in the body.
Make sure you request a copy of your results and discuss them thoroughly. If your levels are borderline, you might be able to correct them with dietary changes alone. If they’re low, your doctor will talk you through your options, which could include supplements or further investigation into underlying causes.
Don’t Ignore Your Iron
Low iron isn’t just about tiredness. It can affect your ability to concentrate, your immune function, and even your mood. And for women, in particular, managing iron levels can be a key part of managing hormonal balance and energy throughout the menstrual cycle.
As part of a Paleo lifestyle, it’s easy to eat well and meet your nutritional needs—especially with the emphasis on real food, quality protein, and nutrient-dense vegetables. But even the best diets can fall short if you don’t listen to your body. If you’re feeling “off” or just not as energised as usual, consider whether iron could be a piece of the puzzle.
Have you ever had your levels checked? How were they?