Key Takeaways
-
Iron deficiency can show up in unexpected ways, from ice cravings and restless legs to changes in your nails and tongue.
-
Many of these symptoms are overlooked or attributed to stress or aging when low iron may be the real culprit.
-
Clinically studied lactoferrin offers a gentler, research-backed approach to supporting healthy iron status.
Most people associate iron deficiency with fatigue. And yes, feeling wiped out is one of the most common signs. But iron plays a role in so many systems throughout your body that when levels drop, the signals don't always show up where you'd expect.
At Perelel , we talk a lot about the nutrients women need at every stage, and iron is one that comes up constantly. Whether you're pregnant, postpartum, navigating perimenopause, or living with heavy periods, iron deficiency is more common than most women realize. And the signs are sometimes genuinely strange.
Here are five symptoms worth paying attention to and what you can do if they sound familiar.
1. You Can't Stop Crunching Ice
Compulsive ice chewing, clinically called pagophagia, is a form of pica, which refers to cravings for non-nutritive substances like ice, dirt, or starch. It's surprisingly common among women with low iron.
One theory suggests that chewing ice may temporarily boost alertness by stimulating blood flow to the brain. If you find yourself going through trays of ice cubes regularly, it's worth getting your levels checked.
2. Your Legs Won't Settle Down at Night
That creeping, tingling urge to move your legs right when you're trying to fall asleep has a name: restless legs syndrome . And low iron is one of the most well-established triggers. Iron is involved in dopamine production, which helps control movement. When stores drop, dopamine signaling gets disrupted, and that restless sensation kicks in.
A lot of women chalk this up to stress or poor sleep. But if your legs seem to have a mind of their own at bedtime, iron is worth looking into.
3. Your Nails Look Different
Healthy nails need oxygen-rich blood to grow, and iron is the key player in delivering that oxygen.
When levels are low, nails can become:
-
Thin, brittle, or prone to cracking
-
Flat instead of slightly curved
-
Concave or spoon-shaped (a condition called koilonychia )
It's easy to write off nail changes as cosmetic, but they can tell you a lot about what's happening internally.
4. Your Tongue Feels Sore or Looks Smooth
This one tends to fly under the radar. Iron helps maintain healthy mucosal tissues, so when levels drop, the tongue can lose its normal texture, swell, or become tender.
Some women also notice cracks at the corners of their mouths. The clinical term is glossitis, and while dehydration or B vitamin deficiency can cause similar symptoms, persistent tongue changes are worth mentioning to your provider.
5. You Feel Anxious or Mentally Foggy for No Clear Reason
Iron is critical for brain function and neurotransmitter production. When the brain isn't getting adequate oxygen, cognitive symptoms can show up fast.
That might look like:
-
Difficulty concentrating or staying focused
-
Short-term memory lapses
-
Heightened anxiety or irritability
This is one of the most commonly missed connections because it overlaps with stress, hormonal shifts, and sleep deprivation. But if mental clarity feels off and the usual explanations don't land, iron deserves a closer look.
What To Do If These Signs Sound Familiar
Start with your healthcare provider. A simple blood test measuring hemoglobin, ferritin, and total iron-binding capacity can clarify whether low iron is at play.
From there, the fix isn't always a traditional iron supplement. Ferrous sulfate, the most commonly prescribed form, works but is known for causing nausea, constipation, and cramping that make it hard to stay consistent.
Lactoferrin offers a different approach. It's a bioactive protein naturally found in colostrum that supports healthy iron utilization by binding and transporting iron in the body. Multiple clinical trials have shown that oral lactoferrin can support serum iron , ferritin, and hemoglobin while causing fewer GI issues compared to standard iron supplements.
Our lactoferrin + collagen peptide powder, Daily Resilience Complex, delivers 250 mg of clinically studied lactoferrin alongside 10 grams of bioavailable collagen peptides in a single unflavored scoop, supporting healthy iron status, immune health, gut health, and joint health without the discomfort of traditional iron formulas.*
For comprehensive stage-specific support, our prenatal packs and Perimenopause Support Pack include iron where appropriate, always in bioavailable forms. Your body sends signals for a reason. The weird ones count too.
Frequently Asked Questions
Can you be iron-deficient without being anemic?
Yes. You can have depleted iron stores and experience symptoms before hemoglobin drops enough to meet the clinical threshold for anemia.
Who is most at risk for iron deficiency?
Women with heavy periods, pregnant and postpartum women, vegetarians, and women navigating perimenopause are all at higher risk.
Is lactoferrin better than traditional iron supplements?
Research suggests lactoferrin can improve iron status with fewer GI side effects by supporting the body's natural iron transport pathways.
How long does it take to correct an iron deficiency?
Many women feel improvement within a few weeks, but fully restoring iron stores can take several months. Your provider can help monitor progress.
Should I get my iron levels tested regularly?
If you have risk factors or are experiencing symptoms, yes. Ferritin can drop well before anemia appears on routine bloodwork, so proactive testing matters.
Sources:
Iron-Deficiency Anemia: Symptoms, Causes and Treatment | Cleveland Clinic
Iron Deficiency Anemia: Symptoms and Causes | Mayo Clinic
Restless Legs Syndrome | National Institute of Neurological Disorders and Stroke
Lactoferrin for Prevention and Treatment of Anemia and Inflammation in Pregnant Women | PMC
