Pure Encapsulations

O.N.E Multivitamin with Iron

Pure Encapsulations O.N.E Multivitamin with Iron is a once-daily capsule delivering a broad-spectrum vitamin and mineral blend, formulated to address nutritional gaps in a single daily dose.

£40

1
Delivery includedArrives in 1 to 3 days30-day returns
Pure EncapsulationsO.N.E Multivitamin with Iron
£401

Pure Encapsulations O.N.E Multivitamin with Iron is a once-daily capsule delivering a broad-spectrum vitamin and mineral blend, formulated to address nutritional gaps in a single daily dose.

Why we love it

Pure Encapsulations O.N.E Multivitamin with Iron is a once-daily capsule delivering a broad-spectrum vitamin and mineral blend, formulated to address nutritional gaps in a single daily dose.

  • Once-daily multivitamin with iron included in the formula
  • Suited to those with confirmed low ferritin or iron need
  • Clean formulation from a clinician-trusted brand
  • Broad micronutrient cover in a single daily capsule

Good to know

  • A food supplement. Do not take more than the dose on the label.
  • Not a substitute for a varied, balanced diet and a healthy lifestyle.
  • Check with your doctor first if you are pregnant, breastfeeding, taking medication or under medical care.
  • Keep out of the reach of young children.
How to use

Take one capsule daily with food. Taking it with a meal helps tolerance and may support absorption of fat-soluble vitamins in the formula. Follow the dosage guidance on the packaging and consult a clinician if you are unsure whether iron supplementation is appropriate for you.

More about it

Pure Encapsulations O.N.E Multivitamin with Iron is a once-daily capsule delivering a broad-spectrum vitamin and mineral blend, formulated to address nutritional gaps in a single daily dose. It includes iron, which is notably absent from many standard multivitamins, making it relevant for those who have identified low ferritin or iron deficiency through a blood test, or who have increased physiological demand - menstruating women, pregnant women, or those with dietary restrictions that limit red meat intake.

The formula covers the foundational micronutrient bases: the B-vitamin complex to support energy metabolism and neurological function, fat-soluble vitamins for immune and cellular health, and key minerals alongside iron for broader physiological support. One capsule daily keeps the routine simple, which tends to improve consistency over time.

Pure Encapsulations is a brand with a longstanding reputation for clean, well-characterised formulations, and is frequently referenced by integrative clinicians. Their products are commonly chosen when patients need confidence in ingredient identity and dose integrity - particularly those who react to additives or fillers common in high-street multivitamins. This makes the O.N.E with Iron a considered choice rather than a default one, best suited to individuals who have confirmed they would benefit from supplemental iron rather than taking it speculatively.

Delivery and returns

Standard UK delivery included on every order, 1 to 3 working days after dispatch.

Next working day for £25 when you order by 12pm. Orders placed before 12pm on a working day leave the same day. Later orders leave the next working day.

You can return unopened and unused items within 30 days of delivery. This does not affect your statutory rights. Read the delivery and returns terms

or call 020 3951 3429

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Your questions

Why does this multivitamin include iron when many others do not?

Most broad multivitamins omit iron because excess iron is not benign — it can cause gastrointestinal discomfort and, in some individuals, accumulate to problematic levels. This formula includes it for those who have a confirmed need, such as low ferritin on a blood test, increased physiological demand, or a diet low in haem iron sources. If you are not sure whether you need supplemental iron, get tested first.

Who is this multivitamin not suitable for?

Anyone with haemochromatosis or elevated iron levels should avoid iron-containing supplements. Men and post-menopausal women with no confirmed deficiency typically do not need supplemental iron and should consider a version without it. If you are on medication or managing a chronic condition, check with your GP or prescribing clinician before starting any new supplement.

How long before I notice a difference?

Micronutrient repletion is gradual. If you were deficient, improvements in energy and wellbeing may become noticeable over several weeks to a few months. A follow-up blood test at three to six months is the most reliable way to assess whether your levels have responded.

Can I take this alongside other supplements?

Generally yes, but be mindful of duplication — if you are already taking a separate iron supplement, a B-complex, or individual fat-soluble vitamins, check the combined totals against safe upper limits. High-dose vitamin A alongside a multivitamin is a common area to watch. A clinician or registered nutritionist can help you map your full supplement stack.

Why choose Pure Encapsulations over a supermarket multivitamin?

Pure Encapsulations formulations are well-characterised and minimise excipients, which matters for individuals who react to common fillers, colourings, or allergens found in mass-market vitamins. The brand is frequently used in clinical practice, which means the ingredient forms and doses tend to reflect what practitioners actually consider meaningful rather than what looks impressive on a label.

In their words

Overall

4.824 reflections
1 to 6 of 24 reflections
SK

Finally a multi that includes iron

6 months ago

My GP flagged low ferritin last year and I've been searching for a clean once-daily that actually includes iron without a mountain of fillers. This is it. Been taking it for about six weeks alongside my morning coffee and I've noticed a real difference in energy by midday. Simple routine, no complaints.

PM

Recommended by my nutritionist

6 months ago

Switched to this after my nutritionist mentioned it as one of the cleaner options on the market. I'd been on a high-street brand for years and honestly never noticed much. Three months in and my last blood test showed iron back in normal range. Can't attribute it all to this but it's definitely part of the picture.

E

Does exactly what it promises

6 months ago

One capsule, no fuss. I take it with breakfast and it fits seamlessly into my morning. The lack of unnecessary additives is what sold me — I react badly to some of the coatings on cheaper multivitamins and have had zero issues with this.

NF

Good quality but the capsule is quite large

6 months ago

Really pleased with the formulation — no stomach upset, no artificial colours, and I trust the brand. Only gripe is the capsule size, it's noticeably bigger than I expected and I do struggle to swallow it first thing in the morning. Not a dealbreaker but worth knowing.

JW

Great for plant-based eaters

7 months ago

As someone who doesn't eat red meat, getting enough iron through diet alone is tricky. Blood test confirmed I was on the lower end, so started taking this about four months ago. Follow-up test was much improved. The once-daily format means I actually remember to take it.

T

7 months ago

Solid multi. No weird aftertaste, fits in with my other supplements, no stomach upset even on an empty stomach. Would buy again.

Pairs well with

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