NaturesPlus Ultra One Daily Iron Free, 90 Capsules supplement bottle
NaturesPlus

Ultra One Daily Iron Free, 90 Capsules

What We Researched
24 active ingredients analyzed · 5 inactive ingredients decoded · 2 retailers compared · Last updated: Mar 2026
87
Product Score Good
59
Brand Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (100% from beta carotene) (10000 IU) 3000 mcg RAE 333%
Vitamin C (as ascorbic acid) 150 mg 167%
Vitamin D (as vegan cholecalciferol) (400 IU) 10 mcg 50%
Vitamin E (as d-alpha tocopheryl succinate) (100 IU) 67 mcg 447%
Thiamin (vitamin B1) (as thiamine mononitrate) 25 mg 2083%
Riboflavin (vitamin B2) 25 mg 1923%
Niacin (as niacinamide) 100 mg NE 625%
Vitamin B6 (as pyridoxine HCl) 25 mg 1471%
Folate (as calcium L-5- methyltetrahydrofolate) (400 mcg L- methylfolate) 667 mcg DFE 167%
Vitamin B12 (as methylcobalamin) 100 mcg 4167%
Biotin 300 mcg 1000%
Pantothenic Acid (as d-calcium pantothenate) 50 mg 1000%
Choline (as bitartrate) 10.5 mg 2%
Calcium (as carbonate, citrate) 25 mg 2%
Iodine (as potassium iodide) 150 mcg 100%
Magnesium (as oxide, aspartate) 7.2 mg 2%
Zinc (as picolinate, oxide) 15 mg 136%
Selenium (as selenomethionine, sodium selenite) 200 mcg 364%
Copper (as gluconate) 2 mg 222%
Manganese (as gluconate, sulfate) 5 mg 217%
Chromium (as picolinate, chloride) 200 mcg 571%
Molybdenum (as sodium molybdate) 150 mcg 333%
PABA (para-aminobenzoic acid) 25 mg
Inositol 25 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin A (100% from beta carotene) (10000 IU) Fair
  • Vitamin C (as ascorbic acid) Fair
  • Vitamin D (as vegan cholecalciferol) (400 IU) Good
  • Vitamin E (as d-alpha tocopheryl succinate) (100 IU) Good
  • Thiamin (vitamin B1) (as thiamine mononitrate) Fair
  • Riboflavin (vitamin B2) Good
  • Niacin (as niacinamide) Good
  • Vitamin B6 (as pyridoxine HCl) Fair
  • Folate (as calcium L-5- methyltetrahydrofolate) (400 mcg L- methylfolate) Good
  • Vitamin B12 (as methylcobalamin) Good
  • Biotin Good
  • Pantothenic Acid (as d-calcium pantothenate) Good
  • Choline (as bitartrate) Poor
  • Calcium (as carbonate, citrate) Good
  • Iodine (as potassium iodide) Good
  • Magnesium (as oxide, aspartate) Good
  • Zinc (as picolinate, oxide) Fair
  • Selenium (as selenomethionine, sodium selenite) Good
  • Copper (as gluconate) Fair
  • Manganese (as gluconate, sulfate) Good
  • Chromium (as picolinate, chloride) Fair
  • Molybdenum (as sodium molybdate) Good
  • PABA (para-aminobenzoic acid) Good
  • Inositol Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose
  • Magnesium Stearate
  • Potassium
  • Citrate
  • Silica and purified water
Efficacy Good

Dosage Analysis

  • Vitamin A (100% from beta carotene) (10000 IU) 3000 mcg RAE Effective
  • Vitamin C (as ascorbic acid) 150 mg Effective
  • Vitamin D (as vegan cholecalciferol) (400 IU) 10 mcg Under-dosed
  • Vitamin E (as d-alpha tocopheryl succinate) (100 IU) 67 mcg Under-dosed
  • Thiamin (vitamin B1) (as thiamine mononitrate) 25 mg Effective
  • Riboflavin (vitamin B2) 25 mg Effective
  • Niacin (as niacinamide) 100 mg NE High
  • Vitamin B6 (as pyridoxine HCl) 25 mg Effective
  • Folate (as calcium L-5- methyltetrahydrofolate) (400 mcg L- methylfolate) 667 mcg DFE Effective
  • Vitamin B12 (as methylcobalamin) 100 mcg Effective
  • Biotin 300 mcg Effective
  • Pantothenic Acid (as d-calcium pantothenate) 50 mg Effective
  • Choline (as bitartrate) 10.5 mg Under-dosed
  • Calcium (as carbonate, citrate) 25 mg Under-dosed
  • Iodine (as potassium iodide) 150 mcg Effective
  • Magnesium (as oxide, aspartate) 7.2 mg Under-dosed
  • Zinc (as picolinate, oxide) 15 mg Effective
  • Selenium (as selenomethionine, sodium selenite) 200 mcg Effective
  • Copper (as gluconate) 2 mg Effective
  • Manganese (as gluconate, sulfate) 5 mg Effective
  • Chromium (as picolinate, chloride) 200 mcg Effective
  • Molybdenum (as sodium molybdate) 150 mcg Effective
  • PABA (para-aminobenzoic acid) 25 mg Under-dosed
  • Inositol 25 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (100% from beta carotene) (10000 IU) 3000 mcg RAE 333%
Vitamin C (as ascorbic acid) 150 mg 167%
Vitamin D (as vegan cholecalciferol) (400 IU) 10 mcg 50%
Vitamin E (as d-alpha tocopheryl succinate) (100 IU) 67 mcg 447%
Thiamin (vitamin B1) (as thiamine mononitrate) 25 mg 2083%
Riboflavin (vitamin B2) 25 mg 1923%
Niacin (as niacinamide) 100 mg NE 625%
Vitamin B6 (as pyridoxine HCl) 25 mg 1471%
Folate (as calcium L-5- methyltetrahydrofolate) (400 mcg L- methylfolate) 667 mcg DFE 167%
Vitamin B12 (as methylcobalamin) 100 mcg 4167%
Biotin 300 mcg 1000%
Pantothenic Acid (as d-calcium pantothenate) 50 mg 1000%
Choline (as bitartrate) 10.5 mg 2%
Calcium (as carbonate, citrate) 25 mg 2%
Iodine (as potassium iodide) 150 mcg 100%
Magnesium (as oxide, aspartate) 7.2 mg 2%
Zinc (as picolinate, oxide) 15 mg 136%
Selenium (as selenomethionine, sodium selenite) 200 mcg 364%
Copper (as gluconate) 2 mg 222%
Manganese (as gluconate, sulfate) 5 mg 217%
Chromium (as picolinate, chloride) 200 mcg 571%
Molybdenum (as sodium molybdate) 150 mcg 333%
PABA (para-aminobenzoic acid) 25 mg
Inositol 25 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Potassium Unknown
Citrate Unknown
Silica and purified water Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$41$40$39$38$37 Mar 12 $39.48
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NaturesPlus

Founded 1972 · Melville, New York, United States · 420 products · naturesplus.com

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Claimed

Violation History

1 incident
Recall Keto Living Sugar Control Capsules2022-05-06Source
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Frequently Asked Questions
Is NaturesPlus Ultra One Daily Iron Free, 90 Capsules a good supplement?

NaturesPlus Ultra One Daily Iron Free, 90 Capsules received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 24 active ingredients with 90 servings per container. Of the 5 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, NaturesPlus, holds a brand trust score of 59/100.

What are the ingredients in NaturesPlus Ultra One Daily Iron Free, 90 Capsules?

NaturesPlus Ultra One Daily Iron Free, 90 Capsules contains 24 active ingredients: Vitamin A (100% from beta carotene) (10000 IU) (3000 mcg RAE), Vitamin C (as ascorbic acid) (150 mg), Vitamin D (as vegan cholecalciferol) (400 IU) (10 mcg), Vitamin E (as d-alpha tocopheryl succinate) (100 IU) (67 mcg), Thiamin (vitamin B1) (as thiamine mononitrate) (25 mg), Riboflavin (vitamin B2) (25 mg), and 18 more. Notable high-dose ingredients include Vitamin A at 333% DV, Vitamin E at 447% DV, Thiamin at 2083% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NaturesPlus Ultra One Daily Iron Free, 90 Capsules safe to take?

NaturesPlus Ultra One Daily Iron Free, 90 Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NaturesPlus a trustworthy supplement brand?

NaturesPlus receives a brand trust score of 59/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Melville, New York, United States, the company offers 420 products in their lineup. Note: NaturesPlus has 1 historical regulatory incident on record, which are factored into the trust score.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.