Why Iron Bisglycinate with Vitamin C Is the Smarter Way to Tackle Iron Deficiency

Why Iron Bisglycinate with Vitamin C Is the Smarter Way to Tackle Iron Deficiency

May 21, 2026Vicki Fletcher

Iron deficiency is the most prevalent nutritional deficiency worldwide [1], and the UK is far from immune. Around 8% of adult women in the UK have iron deficiency anaemia [2], and recent research found that nearly one in three women of menstruating age show signs of absolute iron deficiency — many of them unaware [3]. Yet many people give up on iron supplements because of the side effects: nausea, constipation, and a stomach that feels like it's staging a protest. The good news is that not all iron supplements are the same. 

The Problem with Traditional Iron Supplements 

Standard iron salts like ferrous sulphate are notoriously hard on the digestive system. They're also poorly absorbed, meaning larger doses are needed — and more unabsorbed iron in the gut means more irritation. Many people abandon their supplement within weeks because it feels worse than the deficiency itself. 

What Makes Iron Bisglycinate Different? 

Iron Bisglycinate is a chelated form of iron, bonded to two molecules of the amino acid glycine. This allows it to pass through the gut wall more efficiently and with far less irritation — better absorption, lower dose, fewer side effects. 

Royal Oak Health uses TRAACS® Iron Bisglycinate, a patented, clinically researched form from Albion® Minerals — the gold standard in chelated mineral supplementation. 

The Role of Vitamin C with Iron Bisglycinate

Each capsule includes 50mg of Vitamin C, which converts iron into a form the body absorbs more readily. The two work together in one capsule — no need to remember separate supplements. This is particularly valuable for vegans and vegetarians, whose plant-based (non-haem) iron is naturally harder for the body to absorb.  

Who Is It For? 

  • Women with heavy periods 

  • Vegans and vegetarians 

  • Anyone who's given up on iron supplements due to stomach upset 

  • People experiencing persistent fatigue, brain fog, or poor concentration 

  • Athletes, pregnant women (under healthcare guidance), and those recovering from illness 

Key Benefits of Iron Bisglycinate with Vitamin C

Gentle on the stomach — far less likely to cause constipation or cramping than traditional iron salts. 

Superior absorption — TRAACS® chelation plus Vitamin C maximise how much iron reaches your bloodstream. 

Once-a-day, 90-capsule supply — three months of support in one bottle at £12.99. 

Vegan and allergen-free — no gluten, dairy, soy, GMOs, or artificial preservatives. 

Made in the UK to GMP standards. 

What to Expect 

Some people notice improved energy within two to four weeks. Full replenishment of iron stores typically takes several months — so consistency matters. Take one capsule daily with a meal, and avoid taking it alongside calcium, tea, coffee, or other medications. 

Always consult your healthcare practitioner before starting any new supplement. Food supplements are not a substitute for a varied and balanced diet. 

References 

[1] Proceedings of the Nutrition Society, Cambridge University Press, 2018. View study 

[2] British Journal of General Practice / NICE, April 2025. View study 

[3] Randox Health UK Study, PubMed Central, 2025. View study 

More articles