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Mega-One No Iron

Source Naturals
4.7
(212 ratings)
Manganese 6 mg
PABA 85 mg
Niacin 85 mg
Vitamin B6 85 mg
Molybdenum 100 mcg
Riboflavin 85 mg
Vitamin B5 85 mg
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Score90

An iron-free, high-potency one-a-day multivitamin for simplified daily wellness.

How scoring works
Quantity:60 Tablet(s)(60 servings)
Goals:
Metabolism Boost
Energy
Detoxification
Skin Health
Bone Health

Score 90

An iron-free, high-potency one-a-day multivitamin for simplified daily wellness.

How scoring works
$15.10($0.25 per serving)
iHerb
$ 15.10
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Analysis

This multivitamin provides a high 85mg dose of several B-vitamins, which is excellent for those looking to support their metabolic energy. It also includes 750mg of Vitamin C in various forms to assist with collagen synthesis and skin health.

By excluding iron, it reduces the risk of mineral competition and stomach irritation for sensitive users. It remains one of the most cost-effective and practical high-potency multivitamins on the market today.

Pros

  • Convenient single-tablet daily dose
  • Iron-free for those with specific mineral needs
  • Includes a high dose of Vitamin C for skin
  • Excellent price for a 60-day supply

Cons

  • Tablet size may be daunting for some
  • Relies on standard synthetic vitamin forms
  • Low magnesium dose compared to specialized supplements

Warnings

  • The high B-vitamin levels can lead to a slight 'vitamin' smell and bright urine.
  • Check with a professional if you have sensitivities to standard synthetic vitamins.

Nutrient quality

78 High impact

High levels of B-vitamins provide a robust foundation for energy and cognitive health pathways in a single daily tablet. Efficiency is somewhat limited by the use of less-active vitamin forms, though mineral diversity remains a strong point.

Ingredient transparency

99 Highest impact

The labeling practices are clear and provide individual dosages for all active vitamins, minerals, and supportive compounds. This transparency allows for an easy comparison against established daily requirements and personal health needs.

Customer satisfaction

87 Highest impact

Consistent positive ratings suggest that the iron-free approach is highly effective for its target audience. User feedback generally highlights a reliable experience with notable benefits for overall vitality and metabolic support.

Value for money

94 Highest impact

The price per serving is exceptionally competitive, offering high nutrient density at a very low cost. It is an outstanding value choice for individuals prioritizing potency and affordability in their multivitamin selection.

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Goals

Impact
Highest effect
A- Goal FitA- Strength of SupportA CoverageA- Formula Quality

Chromium Amino Acid Chelate and B-vitamins provide foundational support for glucose management and metabolic cofactors. The inclusion of Iodine from Potassium Iodide further supports thyroid function, which is a primary driver of the basal metabolic rate.

While functional breadth is excellent across minerals and vitamins, the dosages of core metabolic ingredients are provided at standard maintenance levels. This iron-free supplement provides a balanced baseline for metabolic health through its diverse array of bioavailable energy cofactors.

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Impact
Highest effect
A Goal FitA- Strength of SupportC CoverageA+ Formula Quality

Delivers high-potency B-vitamins in a once-daily tablet format to support the citric acid cycle and cellular energy production. This iron-free formula appears well aligned with the needs of individuals seeking focused metabolic support for vitality.

Robust levels of thiamine and riboflavin ensure meaningful participation in energy-producing enzymatic reactions. The formula targets the metabolic fuel pathway through essential cofactors for the conversion of food into cellular ATP.

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Impact
High effect
B Goal FitC+ Strength of SupportB- CoverageA- Formula Quality

This iron-free multivitamin includes molybdenum, selenium, and riboflavin to support the normal functioning of detoxification enzymes. These cofactors facilitate the neutralization of various metabolites and environmental compounds in the liver.

The use of bioavailable mineral complexes ensures that these nutrients can be effectively utilized by cellular pathways. It serves as a comprehensive nutritional baseline for individuals seeking metabolic support without the inclusion of iron.

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Impact
High effect
B Goal FitB Strength of SupportC+ CoverageC+ Formula Quality

This iron-free multivitamin provides high levels of foundational skin nutrients, including 750 mg of vitamin C and 15 mg of zinc. These cofactors are necessary for the stabilization of collagen fibers, which may improve skin elasticity and resilience over time.

Providing 85 mg of biotin also supports the maintenance of keratinized tissues. While it is a high-quality multi-nutrient formula, it lacks targeted structural ingredients or lipids, serving primarily as a broad protective foundation rather than a focused skin therapy.

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Impact
High effect
C+ Goal FitC+ Strength of SupportC CoverageB- Formula Quality

Manganese ascorbate and boron amino acid complex provide foundational enzymatic cofactors for skeletal metabolism and mineral retention. Cholecalciferol and a mixture of calcium forms further support transport and structural maintenance.

The absence of vitamin K2 MK-7 reduces the formula's ability to ensure proper calcium deposition into the bones. This multivitamin provides broad trace mineral support but lacks the focused structural depth of a dedicated bone supplement.

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Impact
Moderate effect
D+ Goal FitC Strength of SupportD- CoverageC+ Formula Quality

This selection is an iron-free, high-potency multivitamin that provides essential vitamins for brain energy and metabolism. Choline and Inositol are included to support neurotransmission and cellular health.

While supportive, it lacks direct cognitive enhancers like memory-specific botanicals or stimulants. It appears well aligned for individuals seeking a nutritional foundation without iron to support overall neurological vitality.

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Impact
Moderate effect
D+ Goal FitD+ Strength of SupportC+ CoverageD+ Formula Quality

B-vitamins like thiamin and pyridoxine support foundational energy metabolism and neurotransmitter synthesis in the brain. Various minerals and bioflavonoids contribute to general health, which may indirectly impact cognitive function.

While this formulation is broad, it provide only maintenance levels of many brain-specific nutrients. The multi-goal nature of the supplement means it lacks the concentrated focus required for high-level cognitive enhancement.

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Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene, Vitamin A Palmitate)
3600 mcg
Vitamin C (Calcium Ascorbate, Manganese Ascorbate, Zinc Ascorbate)
250 mg
Vitamin D3 (Cholecalciferol)
10 mcg
Vitamin E (D-Alpha-Tocopheryl Succinate)
67 mg
Thiamine (Vitamin B1)
85 mg
Riboflavin (Vitamin B2)
85 mg
Niacinamide
85 mg
Vitamin B6 (Pyridoxine Hydrochloride)
85 mg
Folate (Folic Acid)
714 mcg DFE
Vitamin B12 (Cyanocobalamin)
90 mcg
Panthothenic Acid (Calcium D-Pantothenate)
85 mg
Choline (Choline Bitartrate)
33 mg
Calcium (Calcium Ascorbate, Calcium Carbonate, Calcium D-Pantothenate)
48 mg
Iodine (Potassium Iodide)
150 mcg
Magnesium (Magnesium Citrate, Magnesium Oxide)
20 mg
Zinc (Zinc Ascorbate)
15 mg
Selenium (L-Selenomethionine, Sodium Selenite)
50 mcg
Copper (Copper Sebacic Acid Complex)
1 mg
Manganese (Manganese Ascorbic Acid Complex)
6 mg
Chromium (Chromium Amino Acid Chelate)
100 mcg
Molybdenum (Molybdenum Amino Acid Complex)
100 mcg
Potassium (Potassium Citrate)
10 mg
Para-Aminobenzoic Acid
85 mg
Inositol
85 mg
Citrus Bioflavonoids Complex
25 mg
Rutin
21 mg
Hespiridin
5 mg
Boron (Boron Amino Acid Complex)
1 mg
Adults 18–50 Women
Report overview
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
This iron-free multivitamin uses a bioavailable organic form of manganese at a safe, therapeutic dosage. The label provides clear information about the elemental mineral content for the user. It also represents very good value, with a per-serving price significantly lower than the category average.
PABA · 85 mg OverallScore88
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB- Value
This iron-free multivitamin provides 85 mg of PABA to support metabolic coenzyme activity. It is ideal for individuals who require robust nutritional support without additional iron.
Niacin (Niacinamide) · 85 mg OverallScore87
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC Value
This iron-free Mega-One formula provides 85 mg of niacinamide for safe and effective daily metabolic support. It features high label transparency and a potent dose that is appropriate for general health. At a competitive price, it represents one of the better values for high-potency Vitamin B3.
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