Iron & B12 for Women — Why You're Probably Deficient

If you're a woman who exercises regularly, feels fatigue that coffee can't fix, or has heavy periods — there's a good chance your iron or B12 levels are suboptimal. These two nutrients are the most commonly under-consumed by active women worldwide.

Why Women Are at Higher Risk

Menstruation alone causes women to lose 1-2mg of iron per period. Add intense exercise (which increases iron loss through sweat and foot strike hemolysis in runners), and the gap widens. Studies show up to 35% of female athletes are iron deficient.

Signs You Might Be Deficient

Iron Deficiency Symptoms

• Persistent fatigue despite adequate sleep
• Shortness of breath during moderate exercise
• Pale skin, especially inner eyelids
• Cold hands and feet
• Brittle nails or hair loss

B12 Deficiency Symptoms

• Brain fog and difficulty concentrating
• Tingling in hands or feet
• Mood changes and irritability
• Weakness and balance problems

Best Food Sources

Supplementation Strategy

If your levels are low, food alone may not be enough. Iron bisglycinate is the most gentle and bioavailable form. Take it with vitamin C (orange juice works) and away from coffee, tea, and calcium supplements, which block absorption.

Conclusion

Don't accept chronic fatigue as "normal." A simple blood test for ferritin and B12 can reveal whether these common deficiencies are holding back your performance and well-being.