Source Naturals Mega-One™, No Iron, 60 Tablets supplement bottle
Source Naturals

Mega-One™, No Iron, 60 Tablets

What We Researched
29 active ingredients analyzed · 3 inactive ingredients decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
84
Product Score Good
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as palmitate 2,100 mcg & beta-carotene 1,500 mcg) 3,600 mcg 400%
Vitamin C (from calcium, zinc & manganese ascorbates) 250 mg 278%
Vitamin D-3 (as cholecalciferol) 10 mcg 50%
Vitamin E (as d-alpha tocopheryl succinate) 67 mg 447%
Thiamin (vitamin B-1) 85 mg 7,084%
Riboflavin (vitamin B-2) 85 mg 6,539%
Niacin (as Niacinamide) 85 mg 531%
Vitamin B-6 (as pyridoxine HCl) 85 mg 5,000%
Folate (as folic acid) (420 mcg folic acid) 714 mcg DFE 179%
Vitamin B-12 (as cyanocobalamin) 90 mcg 3,750%
Biotin 89 mcg 297%
Pantothenic Acid (as calcium d-pantothenate) 85 mg 1,700%
Choline (as choline bitartrate) 33 mg 6%
Calcium (as calcium ascorbate, calcium d-pantothenate, & carbonate) 48 mg 4%
Iodine (as potassium iodide) 150 mcg 100%
Magnesium (as magnesium oxide & citrate) 20 mg 5%
Zinc (as zinc ascorbate) 15 mg 136%
Selenium (as l-selenomethionine & sodium selenite) 50 mcg 91%
Copper (as copper citrate) 1 mg 111%
Manganese (as manganese ascorbic acid complex) 6 mg 261%
Chromium (as amino acid chelate) 100 mcg 286%
Molybdenum (as molybdenum amino acid complex) 100 mcg 222%
Potassium (as potassium citrate) 10 mg <1%
PABA (para-aminobenzoic acid) 85 mg
Inositol 85 mg
Citrus Bioflavonoid Complex 25 mg
Rutin 21 mg
Hesperidin 5 mg
Boron (as boron amino acid complex) 1 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin A (as palmitate 2,100 mcg & beta-carotene 1,500 mcg) Fair
  • Vitamin C (from calcium, zinc & manganese ascorbates) Fair
  • Vitamin D-3 (as cholecalciferol) Good
  • Vitamin E (as d-alpha tocopheryl succinate) Good
  • Thiamin (vitamin B-1) Good
  • Riboflavin (vitamin B-2) Good
  • Niacin (as Niacinamide) Good
  • Vitamin B-6 (as pyridoxine HCl) Fair
  • Folate (as folic acid) (420 mcg folic acid) Fair
  • Vitamin B-12 (as cyanocobalamin) Fair
  • Biotin Good
  • Pantothenic Acid (as calcium d-pantothenate) Good
  • Choline (as choline bitartrate) Poor
  • Calcium (as calcium ascorbate, calcium d-pantothenate, & carbonate) Good
  • Iodine (as potassium iodide) Good
  • Magnesium (as magnesium oxide & citrate) Poor
  • Zinc (as zinc ascorbate) Fair
  • Selenium (as l-selenomethionine & sodium selenite) Good
  • Copper (as copper citrate) Good
  • Manganese (as manganese ascorbic acid complex) Good
  • Chromium (as amino acid chelate) Good
  • Molybdenum (as molybdenum amino acid complex) Good
  • Potassium (as potassium citrate) Good
  • PABA (para-aminobenzoic acid) Good
  • Inositol Good
  • Rutin Fair
  • Hesperidin Good
  • Boron (as boron amino acid complex) Fair
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Modified Cellulose Gum
  • Silica
Efficacy Good

Dosage Analysis

  • Vitamin A (as palmitate 2,100 mcg & beta-carotene 1,500 mcg) 3,600 mcg High
  • Vitamin C (from calcium, zinc & manganese ascorbates) 250 mg Effective
  • Vitamin D-3 (as cholecalciferol) 10 mcg Under-dosed
  • Vitamin E (as d-alpha tocopheryl succinate) 67 mg Effective
  • Thiamin (vitamin B-1) 85 mg Effective
  • Riboflavin (vitamin B-2) 85 mg Effective
  • Niacin (as Niacinamide) 85 mg High
  • Vitamin B-6 (as pyridoxine HCl) 85 mg Effective
  • Folate (as folic acid) (420 mcg folic acid) 714 mcg DFE Effective
  • Vitamin B-12 (as cyanocobalamin) 90 mcg Effective
  • Biotin 89 mcg Effective
  • Pantothenic Acid (as calcium d-pantothenate) 85 mg Effective
  • Choline (as choline bitartrate) 33 mg Under-dosed
  • Calcium (as calcium ascorbate, calcium d-pantothenate, & carbonate) 48 mg Under-dosed
  • Iodine (as potassium iodide) 150 mcg Effective
  • Magnesium (as magnesium oxide & citrate) 20 mg Under-dosed
  • Zinc (as zinc ascorbate) 15 mg Effective
  • Selenium (as l-selenomethionine & sodium selenite) 50 mcg Effective
  • Copper (as copper citrate) 1 mg Effective
  • Manganese (as manganese ascorbic acid complex) 6 mg High
  • Chromium (as amino acid chelate) 100 mcg Effective
  • Molybdenum (as molybdenum amino acid complex) 100 mcg Effective
  • Potassium (as potassium citrate) 10 mg Under-dosed
  • PABA (para-aminobenzoic acid) 85 mg Under-dosed
  • Inositol 85 mg Under-dosed
  • Rutin 21 mg Under-dosed
  • Hesperidin 5 mg Under-dosed
  • Boron (as boron amino acid complex) 1 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (as palmitate 2,100 mcg & beta-carotene 1,500 mcg) 3,600 mcg 400%
Vitamin C (from calcium, zinc & manganese ascorbates) 250 mg 278%
Vitamin D-3 (as cholecalciferol) 10 mcg 50%
Vitamin E (as d-alpha tocopheryl succinate) 67 mg 447%
Thiamin (vitamin B-1) 85 mg 7,084%
Riboflavin (vitamin B-2) 85 mg 6,539%
Niacin (as Niacinamide) 85 mg 531%
Vitamin B-6 (as pyridoxine HCl) 85 mg 5,000%
Folate (as folic acid) (420 mcg folic acid) 714 mcg DFE 179%
Vitamin B-12 (as cyanocobalamin) 90 mcg 3,750%
Biotin 89 mcg 297%
Pantothenic Acid (as calcium d-pantothenate) 85 mg 1,700%
Choline (as choline bitartrate) 33 mg 6%
Calcium (as calcium ascorbate, calcium d-pantothenate, & carbonate) 48 mg 4%
Iodine (as potassium iodide) 150 mcg 100%
Magnesium (as magnesium oxide & citrate) 20 mg 5%
Zinc (as zinc ascorbate) 15 mg 136%
Selenium (as l-selenomethionine & sodium selenite) 50 mcg 91%
Copper (as copper citrate) 1 mg 111%
Manganese (as manganese ascorbic acid complex) 6 mg 261%
Chromium (as amino acid chelate) 100 mcg 286%
Molybdenum (as molybdenum amino acid complex) 100 mcg 222%
Potassium (as potassium citrate) 10 mg <1%
PABA (para-aminobenzoic acid) 85 mg
Inositol 85 mg
Citrus Bioflavonoid Complex 25 mg
Rutin 21 mg
Hesperidin 5 mg
Boron (as boron amino acid complex) 1 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Modified Cellulose Gum Generally_safe

It is used to improve the texture and stability of products.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$15$14$13$12$11 Mar 12 $13.00
iHerb

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

Brand Trust Report
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is Source Naturals Mega-One™, No Iron a good supplement?

Source Naturals Mega-One™, No Iron, 60 Tablets received a product quality score of 84/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 29 active ingredients Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Mega-One™, No Iron?

Source Naturals Mega-One™, No Iron contains 29 active ingredients: Vitamin A (as palmitate 2,100 mcg & beta-carotene 1,500 mcg) (3,600 mcg), Vitamin C (from calcium, zinc & manganese ascorbates) (250 mg), Vitamin D-3 (as cholecalciferol) (10 mcg), Vitamin E (as d-alpha tocopheryl succinate) (67 mg), Thiamin (vitamin B-1) (85 mg), Riboflavin (vitamin B-2) (85 mg), and 23 more. Notable high-dose ingredients include Vitamin A at 400% DV, Vitamin C at 278% DV, Vitamin E at 447% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Mega-One™, No Iron safe to take?

Source Naturals Mega-One™, No Iron, 60 Tablets 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.