Iron Boost Duo
30 Servings Save 20% on subscriptionIron and vitamin C together, because that's exactly how your body absorbs iron best. Two pharmacist-formulated supplements, bundled for better results at a better price. Gentle ferric diphosphate, no constipation, both Vegan Society certified.


- Free Shipping
- 100% Money back guarantee
What’s included?
Super Iron Gummies: Ferric diphosphate, 14mg per serving. Gentle chelated iron, no constipation, no nausea. Natural blackberry flavour.
Wholefruit Vitamin C Gummies: Made from whole lemon and acerola cherry. Take together with iron for maximum absorption. Zero added sugar.
Why iron + vitamin C?
Non-haem iron (the form in plant foods) absorbs at only 2–5% without a co-factor. Vitamin C significantly increases absorption by converting iron to its absorbable form and keeping it soluble through the digestive tract. Our pharmacist founders created this bundle because they saw vegan patients taking iron that wasn’t working, because they were missing this co-factor.
How to take
Take 2 Super Iron Gummies and 2 Wholefruit Vitamin C Gummies daily, at the same time, ideally on an empty stomach. Taking them together is important: the absorption-enhancing effect of vitamin C requires both to be present in the digestive system simultaneously.
Avoid tea or coffee for 30 minutes before or after. Adults and children aged 12 and over only.
Ingredients
Super Iron Gummies: Glucose syrup, sugar, water, ferric diphosphate, pectin, citric acid, natural flavour (blackberry), colour (anthocyanin). Contains: 14mg iron per 2 gummies (100% NRV).
Wholefruit Vitamin C Gummies: Glucose syrup, sugar, water, acerola cherry extract, lemon juice concentrate, pectin, citric acid, natural flavour. Zero added sugar sweetener. See individual product labels for full ingredient lists.
Shipping & Returns
Shipping: Free tracked shipping on all subscription orders and orders over £20. Non-subscription orders under £20: £3.95. Most orders dispatched within 1 business day, delivered within 3–5 business days.
30-day money-back guarantee: Not happy? We’ll sort it, no questions asked.
Plant-based iron needs a co-factor to absorb properly.
Taking Iron Without Vitamin C? You Could Be Missing Most of the Benefit.
Plant-based non-haem iron absorbs at only 2–5% without help, compared to 15–30% for haem iron from meat. Nutritional guidelines suggest vegans may need up to 1.8 times more iron than meat-eaters to absorb the same amount.
Our pharmacist founders saw this in their clinical practice: vegan patients taking iron supplements that weren’t working because they were missing the co-factor. Vitamin C converts iron to its absorbable form and keeps it soluble as it passes through the digestive tract. Take both together. Every time.
Ferric diphosphate: the form your gut can actually handle.
Feeling Tired? This Is the Most Common Nutritional Deficiency in the UK.
Iron deficiency is the most common nutritional deficiency in the UK, and it’s significantly more prevalent on plant-based diets. Most iron supplements use ferrous sulphate: cheap, but the primary reason people stop taking their iron (constipation, nausea, cramps).
Super Iron Gummies use ferric diphosphate: a chelated form bonded to diphosphate that is significantly better tolerated for long-term daily use. The form that actually works, without the side effects.
Vitamin C dramatically increases non-haem iron absorption.
The Co-Factor Your Iron Supplement Has Been Missing.
Vitamin C reduces iron to its absorbable ferrous form and keeps it soluble as stomach pH rises: the precise mechanism that makes co-supplementation so effective. It also counteracts phytates (found in wholegrains, legumes, and seeds) which would otherwise block iron absorption.
Our Wholefruit Vitamin C Gummies use whole lemon and acerola cherry: not synthetic ascorbic acid. Cleaner taste, better stomach tolerance. Take together with your iron gummies every time.
Why iron absorption matters for vegans
The pharmacist case for iron + vitamin C: and why most supplements get it wrong
Why does iron absorption matter?
Plant-based non-haem iron absorbs at only 2–5% without a co-factor, compared to 15–30% for haem iron from meat. Nutritional guidelines suggest vegans may need up to 1.8 times more iron than meat-eaters simply to absorb the same amount. Vitamin C converts iron to its absorbable form and keeps it soluble through the digestive tract. Our pharmacist founders built this bundle because they saw vegan patients taking iron that wasn’t working: because they were missing this co-factor.
Super Iron Gummies: ferric diphosphate, 14mg
Ferric diphosphate is a chelated form of iron that is significantly better tolerated than ferrous sulphate: the standard in most pharmacy supplements. No constipation, no nausea, no cramps. 14mg per serving (100% NRV). Clinically suitable for long-term daily use. Natural blackberry flavour. Adults and children 12+: 2 gummies daily.
Wholefruit Vitamin C: whole lemon and acerola
Made from whole fruit, not synthetic ascorbic acid. Natural co-factors deliver a cleaner taste and better stomach tolerance. Take at the same time as your iron gummies: the absorption-enhancing effect requires both to be present in your digestive system simultaneously. Avoid tea or coffee for 30 minutes before or after. Zero added sugar.
Who is this for?
Vegans and plant-based eaters. Women of childbearing age: iron is lost through menstruation every month. Anyone diagnosed with iron deficiency anaemia or low ferritin. Athletes and active people. Those experiencing fatigue, brain fog, or poor concentration. Anyone who has tried iron tablets and stopped due to constipation or nausea.
Iron + Vitamin C: because the science is clear.
Your Complete Daily Iron Support in One Bundle.
14mg ferric diphosphate iron per serving. Whole-fruit vitamin C from lemon and acerola. Pharmacist-formulated for vegans and plant-based eaters who want iron that actually absorbs.
6 reasons to choose the Iron Boost Duo
Pharmacist-formulated iron + Vitamin C pairing
Built by GPhC-registered pharmacists who saw vegan patients taking iron that wasn’t working: because they were missing the co-factor.
Ferric diphosphate: the gentle form
Chelated iron that is significantly better tolerated than ferrous sulphate. No constipation, no nausea, no reason to stop.
Significantly better absorption vs iron alone
Vitamin C keeps iron in its absorbable form throughout the digestive tract. The mechanism is well-established and NHS-supported.
No constipation, no nausea
The most common reason people stop taking iron supplements: eliminated. Ferric diphosphate is made for long-term daily use.
Wholefruit Vitamin C: not synthetic
Made from whole lemon and acerola cherry. Cleaner taste, better stomach tolerance, no synthetic aftertaste.
Vegan Society certified
Both products carry the Vegan Society trademark: independently verified, not self-declared.
Two supplements, one clear purpose
Iron that absorbs. Because one without the other is only half the answer.
Super Iron Gummies
Ferric diphosphate: 14mg per serving. Gentle chelated iron, no constipation, no nausea. Natural blackberry flavour. The iron your body can actually absorb.
Wholefruit Vitamin C
Whole lemon and acerola cherry: not synthetic ascorbic acid. Take together with your iron gummies for maximum absorption. Zero added sugar.
Not like other iron supplements…
|
|
Standard Iron Tablets | |
|---|---|---|
| Price | From £23.20 | £15–£25 |
| Gentle ferric diphosphate: no constipation | ✓ | ✗ |
| Vitamin C included for enhanced absorption | ✓ | ✗ |
| Vegan Society certified | ✓ | ✗ |
| Whole-fruit vitamin C: not synthetic | ✓ | ✗ |
| Pharmacist Founded & Formulated | ✓ | ✗ |
Frequently asked questions
Iron in plant foods exists only as non-haem iron, which is significantly harder to absorb than haem iron from meat. Absorption rates can be as low as 2–5%, compared to 15–30% for haem iron. Nutritional guidelines suggest vegans may need up to 1.8 times more dietary iron than omnivores: and supplementation is often recommended.
Take both supplements at the same time, ideally on an empty stomach. The absorption-enhancing effect of vitamin C requires it to be present in the stomach and small intestine alongside the iron. Avoid tea and coffee for 30 minutes before or after: tannins can inhibit iron absorption.
No. Constipation and nausea are well-known side effects of ferrous sulphate, the form used in most pharmacy iron supplements. Our Super Iron Gummies use ferric diphosphate: a chelated form that is significantly better tolerated for long-term daily use. Most customers who previously struggled with iron tablets find ferric diphosphate well tolerated.
Some people notice improvements in energy within a few weeks. Restoring iron stores fully typically takes three to four months of consistent supplementation. We recommend starting with a subscription so you don’t run out mid-course. If you have been diagnosed with iron deficiency anaemia, your GP will advise on how long to supplement and when to retest.
Yes: a one-time purchase is available at checkout. That said, iron supplementation works best when it’s consistent over several months. A subscription ensures you never run out mid-course, and you can pause or cancel anytime with no minimum term.