🟢 97/100

This product looks safe

  • Niacin: 60mg is 1.7× the Tolerable Upper Intake Level (35mg)
  • Folate: 332mg is 332.0× the Tolerable Upper Intake Level (1.0mg)
  • 71% of ingredients have research evidence
D Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 60mg is 1.7× the Tolerable Upper Intake Level (35mg)
⚠️ Folate: 332mg is 332.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

4 Tablet(s) Serving Size
30 Servings
Other Combinations Product Type
71% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A
3280 mcg RAE (364% DV)
Vitamin C
500 mg (556% DV)
15 mcg (75% DV)
✅ Within RDA (1.0× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.015mg UL 0.1mg
72 mg (480% DV)
📊 4.8× RDA — above typical dose (UL: 1000 mg) 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 72mg UL 1000mg
25 mg (2083% DV)
📊 20.8× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 25mg
20 mg (1538% DV)
📊 15.4× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 20mg
60 mg NE (375% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.7× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 60mg UL 35mg
30 mg (1765% DV)
📊 23.1× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 30mg UL 100mg
332 mcg DFE (83% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 332.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 332mg UL 1.0mg
100 mcg (4167% DV)
📊 41.7× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.1mg
300 mcg (1000% DV)
📊 10.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.3mg
150 mg (3000% DV)
📊 30.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 150mg
16 mg (3% DV)
📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 16mg UL 3500mg
Calcium
400 mg (31% DV)
220 mg (18% DV)
✅ Within RDA (0.3× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 220mg UL 4000mg
200 mcg (133% DV)
✅ 1.3× RDA — within safe limits 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.2mg UL 1.1mg
400 mg (95% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 400mg
30 mg (273% DV)
✅ 2.7× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 30mg UL 40mg
100 mcg (182% DV)
✅ 1.8× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.1mg UL 0.4mg
2 mg (222% DV)
✅ 2.2× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 2mg UL 10mg
3 mg (130% DV)
✅ 1.3× RDA — within safe limits 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 3mg UL 11mg
100 mcg (286% DV)
✅ 2.9× RDA — within safe limits 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.1mg
Potassium
100 mg (2% DV)
Herbal and Protector Shield Proprietary Blend
288 mg

Other Ingredients

Cellulose Stearic Acid Vegetable Magnesium Stearate Silicon Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (71% of products) Nutrient (61% of products) Approved Health (1% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Recommended Use: Take 4 tablets daily with a meal. These can be taken one at a time with meals and at bedtime.

⚠️ Warnings & Precautions

Do not use if inner seal is missing or damaged.

Warning: Accidental overdose of iron - containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or poison control center immediately.

🧪 Formulation Notes

General nutrition support Guaranteed pure

Vitamins, minerals, & phytonutrients, enhanced with a complement of herbs

Additional Information

New look! Same great product

Herbal experts since 1972

Bottle made from 100% post consumer recycled material. We are committed to you and our planet. Scan to learn more.

Product Details

UPC / SKU 0 99904 01379 7
DSLD Entry Date 2021-09-24
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 255497
Data Updated 2026-04-11

Research Evidence

566 Research Sources
56 Avg Quality Score
240 Meta Analysis
100 Clinical Trial
74 Systematic Review
71 Guideline
58 Rct
11 Cochrane Review
4 Regulatory Source
2 Other
2 Narrative Review
1 Observational
1 Openfda Safety
A Systematic review and meta-analysis of intravenous iron therapy for patients with heart failure and iron deficiency
Meta Analysis Nature medicine 2025
A Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult menstruating women
Meta Analysis The Cochrane database of systematic reviews 2019
A Oral or parenteral iron supplementation to reduce deferral, iron deficiency and/or anaemia in blood donors
Meta Analysis The Cochrane database of systematic reviews 2014
A Serum or plasma ferritin concentration as an index of iron deficiency and overload
Meta Analysis The Cochrane database of systematic reviews 2021
A Non-invasive diagnostic tests for Helicobacter pylori infection
Meta Analysis The Cochrane database of systematic reviews 2018
A Hypoxia-inducible factor stabilisers for the anaemia of chronic kidney disease
Meta Analysis The Cochrane database of systematic reviews 2022
A Wheat flour fortification with iron and other micronutrients for reducing anaemia and improving iron status in populations
Meta Analysis The Cochrane database of systematic reviews 2021
A Fortification of condiments and seasonings with iron for preventing anaemia and improving health
Meta Analysis The Cochrane database of systematic reviews 2023
A Screening and Supplementation for Iron Deficiency and Iron Deficiency Anemia During Pregnancy: US Preventive Services Task Force Recommendation Statement.
Guideline JAMA 2024
A Psychiatric and cognitive outcomes of iron supplementation in non-anemic children, adolescents, and menstruating adults: A meta-analysis and systematic review
Meta Analysis Neuroscience and biobehavioral reviews 2025
View all evidence for Iron →

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