Understanding Iron Deficiency
What is Iron Deficiency — and Why Should Wimbledon Residents Be Aware?
Iron deficiency is the most common nutritional deficiency in the UK and one of the most under-diagnosed. Iron is essential for haemoglobin production — the molecule in red blood cells that transports oxygen from the lungs to every organ and tissue. When iron stores fall too low, oxygen delivery is impaired, and you notice it in almost every part of daily life: energy, focus, breath, and mood.
In a large, diverse area like Wimbledon — with its blend of busy professionals, families, athletes, and commuters — iron deficiency is remarkably common. The standard starting point for most people is an oral iron supplement, but many people find these tablets ineffective, poorly tolerated, or simply too slow. IV iron therapy is an increasingly popular alternative that bypasses these problems entirely.
Symptoms to Watch For
Persistent fatigueExhaustion that rest does not resolve — the most universal and disruptive symptom.
Brain fog and poor concentrationDifficulty focusing, forgetfulness, reduced mental clarity and performance.
BreathlessnessShortness of breath with everyday activities — climbing stairs, walking quickly.
Hair thinning and lossNoticeable shedding or thinning — frequently one of the most motivating symptoms to seek help.
PalpitationsThe heart working harder to maintain oxygen delivery with less haemoglobin available.
Poor exercise recoveryReduced performance and slower recovery — particularly relevant for Wimbledon's active community.
Who is Most at Risk?
- Women with heavy or prolonged periods — regular blood loss depletes iron faster than many diets can replenish it
- Vegans and vegetarians — plant-based iron (non-haem) is significantly less bioavailable than iron from animal sources
- Athletes and very active individuals — including the many recreational runners, cyclists, and gym-goers across the Wimbledon area
- Post-surgical or post-partum women — blood loss from surgery or childbirth can cause acute iron depletion
- Those with IBD, coeliac disease, or gut surgery — gut conditions impair iron absorption, making oral supplements ineffective
Iron Deficiency vs Iron Deficiency Anaemia
Iron deficiency describes depleted iron stores — low ferritin — which can cause significant symptoms even when haemoglobin remains in the normal range. Iron deficiency anaemia is the more advanced state where haemoglobin has fallen below the normal threshold. Both can respond very well to IV iron therapy. Dr Nelson assesses the full clinical picture before confirming a treatment plan.
Why Oral Iron Tablets Frequently Fail
Only around 10–20% of oral iron is typically absorbed — and that proportion can be significantly lower in those with gut conditions or inflammation. The side effects of oral iron — nausea, constipation, stomach cramps, and dark stools — cause many patients to stop taking their tablets within weeks. IV iron bypasses the gut entirely, delivering a full therapeutic dose directly into the bloodstream in a single clinical appointment.
