The Best Iron Supplements: Your Guide to Picking the Right One


Iron, a vital mineral, plays a paramount role in various bodily functions. It’s crucial in forming haemoglobin, the protein in red blood cells responsible for transporting oxygen. In Australia, where an active lifestyle often accompanies a sunny disposition, ensuring adequate iron intake is indispensable. However, with a plethora of iron supplements available in the market, making an informed decision can be a labyrinthine task. This guide aims to simplify that choice by delving into the intricacies of selecting the best iron supplement tailored to your needs.

The Importance of Iron

Haemoglobin Formation: Iron is a cornerstone in haemoglobin synthesis, which in turn, is fundamental for oxygen transportation throughout the body. Muscle Function: Iron is essential in providing oxygen to muscle tissues, promoting endurance and fighting muscle fatigue. Immune System Support: Adequate iron levels are synonymous with a robust immune system, rendering the body fortified against infections.

Types of Iron Supplements

Ferrous Iron Salts:

  • Ferrous Sulphate
  • Ferrous Fumarate
  • Ferrous Gluconate

Ferric Iron Salts:

  • Ferric Citrate
  • Ferric Sulphate
  • Iron Amino Acid Chelates

Carbonyl Iron

Why Do Our Bodies Need Iron?

Iron is a quintessential mineral that underpins a myriad of physiological processes crucial for maintaining life and overall well-being. This invaluable micronutrient is at the heart of many cellular functions, underscoring its indispensable role in human health. Here we delve into the myriad ways iron contributes to our body’s seamless operation:

Haemoglobin Synthesis and Oxygen Transport

Iron’s primary role lies in its ability to form haemoglobin, a vital protein present in red blood cells. Haemoglobin’s raison d’être is to latch onto oxygen molecules in the lungs and ferry them across the vast network of blood vessels to every cell and tissue. Without adequate iron, haemoglobin production dwindles, leading to a paucity of oxygen delivery—a condition known as iron-deficiency anaemia, marked by fatigue, weakness, and a pallid complexion.

Myoglobin Formation and Muscle Function

Similar to haemoglobin, myoglobin is another iron-dependent protein, albeit residing in muscle tissues. It holds onto oxygen, providing a reservoir for muscles to tap into during the throes of contraction, especially during strenuous exercise. Inadequate iron compromises myoglobin’s functionality, manifesting in reduced endurance and muscle weakness, encumbering one’s ability to engage in physical activities.

Cellular Respiration and Energy Production

Iron is a linchpin in cellular respiration, a process where cells harness oxygen to generate energy. Iron-containing enzymes partake in the electron transport chain, a sophisticated cellular machinery that churns out adenosine triphosphate (ATP), the energy currency of the cell. A dearth of iron impedes energy production, ushering in fatigue and lethargy, hampering daily productivity.

Immune System Functionality

Iron is instrumental in fortifying the immune system. It nurtures immune cells, aiding in their proliferation and maturation, which in turn, bolsters the body’s ability to ward off infections. However, iron is a double-edged sword; while necessary, an excess can be detrimental, providing a fertile ground for bacterial proliferation. Hence, maintaining iron homeostasis is pivotal for a robust immune defense.

Cognitive Function

The brain’s voracious appetite for oxygen underscores iron’s role in cognitive function. Iron facilitates oxygen transport and is integral to neurotransmitter synthesis, processes fundamental for memory, learning, and reasoning. Iron deficiency is notorious for impairing cognitive function, particularly in children, underscoring the importance of adequate iron intake in fostering mental acuity.

Hormone Synthesis

Iron is a cog in the wheel of hormone synthesis, playing a part in creating essential hormones that regulate myriad bodily functions. From thyroid hormones that modulate metabolism to reproductive hormones that orchestrate fertility, iron’s contribution is far-reaching.

Choosing the Best Iron Supplement

Bioavailability: The paramount factor is the bioavailability of iron, which refers to the extent the body can absorb and utilise the mineral. Ferrous salts are often revered for their high bioavailability.

Tolerance: It’s imperative to choose a supplement that resonates well with your digestive system to prevent adverse reactions like constipation or nausea.

Dosage: The supplement should cater to the recommended dietary allowance of iron, which in Australia, stands at 18mg for adult women and 8mg for adult men.

Certifications: Opt for supplements that have been vetted by reputable bodies for quality and efficacy, such as the Therapeutic Goods Administration (TGA) in Australia.

What Are Some Symptoms of Iron Deficiency?

Iron deficiency is a prevalent nutritional disorder that can insidiously creep into one’s life, often masquerading under the guise of everyday tiredness or malaise. However, when left unaddressed, it can burgeon into a substantial health concern. Here’s an exploration of the various symptoms that could be indicative of iron deficiency:

Fatigue and Weakness

One of the hallmark symptoms of iron deficiency is a pervasive sense of fatigue and weakness. Iron is pivotal for energy production at a cellular level; a deficiency compromises this vital process, leading to diminished vitality and an overarching sense of exhaustion.


A distinctive paleness, particularly noticeable on the face, inner lower eyelids, and nails, often accompanies iron deficiency. The pale hue emanates from reduced haemoglobin levels, which in turn affects the colour of the blood and the skin.

Shortness of Breath

With less haemoglobin available to transport oxygen, individuals may find themselves grappling with shortness of breath, especially during physical exertion as the body scrambles to meet its oxygen demands.

Heart Palpitations

Iron deficiency can precipitate heart palpitations, an unsettling awareness of a rapid, fluttering, or pounding heartbeat. The heart endeavors to pump more blood to compensate for the low oxygen levels, potentially leading to an irregular heartbeat.

Restless Leg Syndrome

Some individuals with iron deficiency experience restless leg syndrome, a compelling urge to move the legs, often accompanied by an unpleasant crawling or creeping sensation.

Brittle Nails and Hair Loss

The integrity of nails and hair can be compromised with low iron levels. Individuals may notice their nails becoming brittle, thin, or developing ridges. Simultaneously, hair may lose its lustre and begin to shed more than usual.

Reduced Exercise Tolerance

Exercise capacity can take a hit due to iron deficiency, as lower oxygen levels translate to reduced endurance and muscle strength, making physical activities seem more daunting.

Cognitive Impairment

Iron is instrumental in various neurological processes, including neurotransmitter synthesis. Iron deficiency can manifest in diminished concentration, memory, and learning abilities, potentially affecting academic and work performance.

Cold Hands and Feet

Iron deficiency can lead to poor circulation, resulting in perpetually cold extremities, despite warm ambient temperatures.

The Best Iron Supplements: Your Guide to Picking the Right One

Iron-Rich Foods: Your Dietary Answer to Iron Deficiency

Combatting iron deficiency transcends merely popping pills; a wholesome diet brimming with iron-rich foods is your first line of defense. The bounty of nature offers a plethora of foods teeming with iron, ready to be harnessed to rectify iron inadequacy. Here’s a curated list of foods that can act as your dietary arsenal against iron deficiency:

Meat and Poultry

The haem iron, found generously in meat and poultry, boasts superior bioavailability, making these foods a potent source of iron. Delve into lean cuts of beef, lamb, pork, and poultry to satiate your iron needs.


Seafood, especially shellfish like clams, oysters, and mussels, are treasure troves of haem iron. Even fish like tuna and salmon make commendable contributions towards meeting your daily iron quota.


For those veering towards plant-based diets, legumes are a formidable source of non-haem iron. Lentils, chickpeas, beans, and peas are not only iron-rich but also pack a punch of protein and fiber.

Nuts and Seeds

A handful of nuts and seeds can go a long way in alleviating iron deficiency. Pumpkin seeds, sesame seeds, and cashews are stellar choices, offering a decent iron payoff.

Whole Grains

Whole grains like quinoa, oatmeal, and whole wheat bread are good conduits of non-haem iron. Their unrefined nature retains the iron that’s often lost in processed grains.

Leafy Green Vegetables

Spinach, kale, and collard greens are verdant sources of non-haem iron. These leafy stalwarts also bring a host of other nutrients to the table, amplifying their health boons.

Fortified Foods

Fortified cereals and breads are infused with iron, rendering them an easy way to bolster your iron intake, especially during hurried mornings.


Certain fruits like dried figs, apricots, and raisins are modest sources of non-haem iron. Incorporate them in your diet for a sweet route to better iron levels.

Enhancing Iron Absorption

Pairing these iron-rich foods with vitamin C-rich foods like citrus fruits, strawberries, and bell peppers can markedly enhance non-haem iron absorption, maximizing the benefits.

A judicious selection of iron-rich foods, aligned with a balanced diet, lays the groundwork for overcoming iron deficiency. The interplay of a varied diet, rich in both haem and non-haem iron sources, coupled with mindful pairing for enhanced absorption, paves the way for optimal iron levels, steering clear of the clutches of iron deficiency. This said, sometimes you will need an iron supplement so help where do you turn and which one should you consider?

Australian Brands Worth Considering

Frequently Asked Questions

Q. What is the difference between ferrous and ferric iron supplements?

Ferrous iron is in a +2 oxidation state and is more readily absorbed compared to ferric iron which is in a +3 oxidation state.

Q. How can I enhance iron absorption?

Consuming vitamin C with iron supplements can significantly enhance absorption.

Q. Are there vegetarian/vegan iron supplements?

Yes, there are plant-based iron supplements available that cater to vegetarians and vegans.

Q. How can I determine my iron levels?

A simple blood test can provide insight into your iron levels.

Q. Can I take iron supplements on an empty stomach?

While it enhances absorption, it may cause stomach cramps or nausea. It’s advisable to follow the manufacturer’s instructions.

Q. Where can I purchase iron supplements in Australia?

Iron supplements can be purchased at health food stores, pharmacies or online marketplaces like BuyNatural.

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