Why it’s not just a women’s health issue and how low iron quietly affects men, too

When we talk about iron deficiency, the conversation almost always centers around women, and for good reason. Women of reproductive age face a perfect storm of risk factors: menstrual blood loss, pregnancy, postpartum recovery, and higher rates of plant-based diets or gut inflammation.

But does that mean iron deficiency is a non-issue for men?

Absolutely not. Iron deficiency in men may be less visible, less discussed, and often less expected, but it absolutely exists. And when it does, it can be just as exhausting, frustrating, and under-recognized as it is for women.

First, let’s get the facts straight

Iron is essential for every human, regardless of gender. It’s the mineral responsible for oxygen transport, red blood cell production, mitochondrial energy generation, thyroid function, mood regulation, and even immunity.

Low iron in men can quietly drain energy, impair athletic performance, worsen cognitive function, and mimic symptoms of burnout, overtraining, or even depression. But because men aren’t routinely screened for iron deficiency, and because they’re less likely to seek care for vague symptoms like fatigue, this condition can fly under the radar for years.

So why do we hear about iron deficiency in women, but not in men?

Because statistically, it’s far more common in women. The number one cause of iron loss is blood loss, and menstruation is the biggest driver of that in the general population. But just because the average man isn’t losing iron every month doesn’t mean he’s immune.

There are four core reasons why a man may become iron deficient:

1. Blood Loss (the hidden kind)

• Frequent blood donors, especially if donating more than 2–3 times per year, can deplete iron reserves.
• Gastrointestinal bleeding, often silent, is a major red flag. This could be due to ulcers, polyps, diverticulosis, hemorrhoids, or colorectal cancer, especially in men over 50.
• Use of NSAIDs (like ibuprofen) or aspirin can cause microscopic GI bleeding that slowly drains iron stores over time.

2. Increased Need (from physical exertion or recovery)

• Athletes, especially endurance runners, are at higher risk. Iron is lost through sweat, red blood cell destruction from repeated foot strike, and increased demand for tissue oxygenation.
• Injury, trauma, or post-surgical healing periods can temporarily increase iron requirements.

3. Poor Absorption

• Men with inflammatory bowel disease, celiac disease, H. pylori infection, chronic antacid use, or a history of gastric bypass surgery may struggle to absorb iron, even if intake is adequate.

4. Low Intake

• While statistically less common in men, plant-based diets, intermittent fasting, or poor overall nutrition can lead to inadequate iron intake, especially when combined with one of the above risk factors.

But what about anemia? Wouldn’t that show up on a blood test?

Maybe. Maybe not.

Here’s what most people (and many clinicians) still miss:

You can have iron deficiency without anemia. This means your hemoglobin is still technically “normal,” but your ferritin—your iron storage protein—has already dropped low enough to cause symptoms such as:

• Fatigue
• Low mood
• Trouble concentrating
• Reduced stamina or motivation
• Shortness of breath during physical activity

These symptoms are easy to dismiss in men as signs of stress, overwork, aging, or mental health struggles. But sometimes, the explanation is much simpler: low iron.

How can men get tested for iron deficiency?

A simple blood test can provide valuable answers. Ask your healthcare provider for:

• Ferritin — the most sensitive marker of iron stores.
• Hemoglobin — to determine whether anemia is present.
• Serum iron, transferrin saturation, and TIBC — to obtain a more complete picture of iron status.

Most men should have a ferritin above 75 µg/L to feel their best. Levels below 50 µg/L may already cause symptoms, even if laboratory reports still classify them as "normal."

Key tip: If you're a man who donates blood regularly, participates in endurance sports, experiences unexplained fatigue, or has digestive symptoms, ask your healthcare provider for a ferritin test.

What's the takeaway?

Iron deficiency does affect men.
It’s simply hidden better.

Because men are not considered the "typical" patient, iron deficiency is often overlooked, even when the symptoms are clear.

Knowing your ferritin level is just as important for men as it is for women. Whether you're an athlete, a busy professional, or simply trying to regain your energy and focus, don't let low iron quietly hold you back.