It could be iron deficiency. According to acclaimed nutritional biochemist Dr Libby Weaver, this widespread deficiency is behind a range of unexplained health challenges.
Fatigue, brain fog, poor sleep, anxiety, hair loss, an underperforming thyroid – they’re all symptoms of iron deficiency, the most common and overlooked nutritional deficiency in the world.
Weaver, best known as Dr Libby, has dedicated five years to researching iron, and is now launching a book calling for action to address this deficiency.
Fix Iron First explores the far-reaching consequences of iron deficiency — from impaired oxygen delivery and nervous system function to its critical role in hormone balance (particularly important for menstruating and perimenopausal women), liver detoxification and mental wellbeing.
“That iron deficiency is the most common nutritional deficiency globally is unacceptable to me,” says Dr Libby.
“Too many people live knowingly or unknowingly with iron insufficiency, experiencing anxiety, brain fog, fatigue, and a host of other symptoms without realising iron is the missing piece.”
“Iron is crucial for energy, thyroid function, detoxification, metabolic rate, a mild perimenopausal transition, anxiety prevention and mood regulation.
“Your thyroid literally requires iron to make its hormones, and the production of key neurotransmitters like dopamine (motivation) and GABA (calming) rely on it.
“It’s no wonder we don’t feel our best when our levels are inadequate – the consequences are significant.”
What are the barriers to optimal iron deficiency?
There are a range of reasons why someone could be iron deficient, including low dietary intake and consuming foods or drinks that inhibit the absorption of iron.
Additionally, traditional iron supplements can often cause constipation and gut discomfort, making it hard for people to maintain consistent, effective support.
How common is iron deficiency?
In Australia, iron deficiency anaemia – the most severe form of iron deficiency – affects 15% of women of reproductive age, including those in perimenopause, and 12% of pregnant women.
Even more concerning, iron deficiency without anaemia is estimated to be three times as common. And the issue extends well beyond women. Research shows that 8% of preschool-aged children have iron deficiency anaemia, with 13.3% of children under five also affected, impairing cognitive development, immune function and physical growth during critical stages of development, while also contributing to fussy eating.
Men aren’t immune either. Around 3.5% of all men and up to 11% of male athletes experience inadequate iron levels, impacting everything from energy and cognitive function to physical performance.
READ MORE: 10 signs you might have an iron deficiency
