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Solgar Gentle Iron vs Bioglan SmartKids Iron + Vitamin C

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Solgar Gentle Iron and Bioglan SmartKids Iron + Vitamin C.

Last verified: 01 Mar 2026 · Based on 66 reviews

82.0
Score Summary

Solgar Gentle Iron scores 82.0/100 vs Bioglan SmartKids Iron + Vitamin C at 70.0/100. Solgar Gentle Iron wins on effectiveness, ingredient quality, value for money.

Solgar Gentle Iron vs Bioglan SmartKids Iron + Vitamin C: What Does the Data Say?

Gentle Iron Iron Bisglycinate from Solgar scores 82/100 overall while SmartKids Iron with Vitamin C from Bioglan hits 70/100. The biggest differences sit in their forms and doses. Solgar uses iron bisglycinate at 20mg per capsule in a vegetable shell that reviewers say causes virtually no constipation or stomach upset. Bioglan packs just 2.5mg iron per gummy with added vitamin C and relies on strawberry flavour plus sugars like glucose syrup and malt syrup to make it appealing. Effectiveness lands at 80/100 for Solgar against 70/100 for Bioglan while ingredient quality shows a clear gap at 90/100 versus 60/100.

Solgar suits vegetarians and vegans who need to top up dietary iron or anyone dealing with ongoing iron loss who wants measurable rises in ferritin and haemoglobin plus better energy and hair condition. Bioglan works better for children aged 4 and above who are picky eaters or need mild daily iron as a preventative. Budget matters too. Solgar costs £18.84 for 180 capsules yet the low 20mg dose can mean taking multiple each day which pushes the price up fast. Bioglan at £8.00 feels cheaper for families but its tiny iron amount limits it to maintenance rather than fixing deficiency.

Practical points come down to daily routine. Solgar capsules have no reported taste issues yet some find the conservative dose frustrating. Bioglan gummies taste like sweets so kids actually ask for them and compliance stays high. Neither lists common allergens in the details provided. Choose based on who needs the iron and how much they truly require.

How Do the Scores Compare?

Gentle Iron (Iron Bisglycin...
SmartKids Iron with Vitamin...
Gentle Iron (Iron Bisglycinate) 20mg Vegetable 180 Capsules
Gentle Iron (Iron Bisglycin...
Solgar
SmartKids Iron with Vitamin C 30 Strawberry Flavour Gummies
SmartKids Iron with Vitamin...
Bioglan
Overall Score 82.0 70.0
Effectiveness 80.0/100
Best
70.0/100
Ingredient Quality 90.0/100
Best
60.0/100
Value for Money 76.0/100
Best
70.0/100
Side Effects 92.0/100
Best
80.0/100
Certifications 72.0/100
Best
30.0/100
Best Price £18.31 Holland & Barrett → £8.00 Holland & Barrett →
Cheapest
Form Capsules chewables
Dose None None
Third-Party Tested ✗ No ✗ No
Reviews Analysed 62 4

Gentle Iron (Iron Bisglycinate) ...

Pros

  • Iron bisglycinate form is exceptionally gentle — virtually no constipation or GI irritation across the large majority of reviewers
  • Multiple users confirm measurable ferritin and haemoglobin improvements via blood tests
  • Widely reported improvements in energy levels, reduced fatigue, and better hair condition
  • Certified vegan, Kosher Parve, Halal, Non-GMO, gluten-free, and dairy-free — suitable for restricted diets

Cons

  • 20mg dose is conservative and may be insufficient for severe iron deficiency without taking 2–4 capsules daily, which increases cost significantly
  • Not third-party tested for purity or label accuracy
  • Requires avoiding calcium-rich foods or supplements near dosing time and ideally co-administration with vitamin C — some find this inconvenient
  • Isolated reports of digestive upset, suggesting individual tolerance still varies

Best For

Vegetarians and vegans with insufficient dietary iron intake Women with heavy periods or ongoing menstrual iron loss Pregnant or postpartum women needing a gut-friendly iron source People who have previously experienced GI side effects from standard iron supplements Those with IBS, SIBO, Hashimoto's, or other conditions requiring a highly tolerable iron form Maintenance supplementation after recovering from diagnosed iron deficiency
View full review →

SmartKids Iron with Vitamin C 30...

Pros

  • Highly palatable strawberry flavour that children enjoy and request
  • Easy compliance—makes supplementing iron simple for picky eaters
  • Vitamin C inclusion enhances iron absorption and supports immune function
  • Convenient once-daily gummy format suitable from age 4

Cons

  • Low iron dose (2.5 mg per gummy, only 18% NRV) may be insufficient for treating diagnosed iron deficiency
  • Contains sugar, glucose syrup, and malt syrup as primary ingredients
  • Includes palm oil and multiple additives (glazing agents, colours)
  • No third-party testing verification or quality certifications mentioned

Best For

Children aged 4+ with mild iron needs or as preventative supplementation Picky eaters who refuse traditional iron supplements Families seeking palatable daily iron maintenance for growing children Children with slightly increased iron requirements (growth spurts, limited meat intake)
View full review →

Score Breakdown: Solgar Gentle Iron vs Bioglan SmartKids Iron + Vitamin C

Solgar Gentle Iron Winner 82.0/100

Solgar Gentle Iron is an iron bisglycinate supplement that stands out primarily for its exceptional gastrointestinal tolerability, with the vast majority of 62 reviewers across Amazon, Holland & Barrett, and iHerb explicitly contrasting it favourably against conventional iron supplements that caused constipation or nausea.

Effectiveness
Gentle Iron (Iro..
80.0/100
SmartKids Iron w..
70.0/100
Ingredient Quality
Gentle Iron (Iro..
90.0/100
SmartKids Iron w..
60.0/100
Value for Money
Gentle Iron (Iro..
76.0/100
SmartKids Iron w..
70.0/100
Side Effects
Gentle Iron (Iro..
92.0/100
SmartKids Iron w..
80.0/100
Certifications
Gentle Iron (Iro..
72.0/100
SmartKids Iron w..
30.0/100

What are the key differences?

Solgar Gentle Iron is best for: Vegetarians and vegans with insufficient dietary iron intake, Women with heavy periods or ongoing menstrual iron loss
Bioglan SmartKids Iron + Vitamin C is best for: Children aged 4+ with mild iron needs or as preventative supplementation, Picky eaters who refuse traditional iron supplements

Frequently Asked Questions

Which is better, Solgar Gentle Iron or Bioglan SmartKids Iron + Vitamin C?
Solgar Gentle Iron scores 82.0/100 overall while Bioglan SmartKids Iron + Vitamin C scores 70.0/100. Solgar Gentle Iron comes out ahead, scoring higher on effectiveness (80.0 vs 70.0). Solgar Gentle Iron is best suited for Vegetarians and vegans with insufficient dietary iron intake and Women with heavy periods or ongoing menstrual iron loss. Bioglan SmartKids Iron + Vitamin C is better for Children aged 4+ with mild iron needs or as preventative supplementation and Picky eaters who refuse traditional iron supplements.
Is Solgar Gentle Iron worth the price compared to Bioglan SmartKids Iron + Vitamin C?
Solgar Gentle Iron costs £18.31 while Bioglan SmartKids Iron + Vitamin C is £8.00. For value, Solgar Gentle Iron scores 76.0/100 vs Bioglan SmartKids Iron + Vitamin C's 70.0/100. Solgar Gentle Iron delivers better value relative to its quality. Note that Solgar Gentle Iron comes as capsules while Bioglan SmartKids Iron + Vitamin C is chewables, which may affect your preference.
Which has fewer side effects?
Solgar Gentle Iron scores 92.0/100 for side effects (higher means fewer reported issues) while Bioglan SmartKids Iron + Vitamin C scores 80.0/100. Reviewers report fewer side effects with Solgar Gentle Iron. For certification and testing, Solgar Gentle Iron scores 72.0/100 vs Bioglan SmartKids Iron + Vitamin C's 30.0/100. Always consult a healthcare professional before starting any supplement.

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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.

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