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Mega-One

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

A high-potency, convenient one-a-day multivitamin for foundational wellness and energy.

How scoring works
Quantity:180 Tablet(s)(180 servings)
Goals:
Metabolism Boost
Energy
Detoxification
Skin Health
Bone Health

Score 90

A high-potency, convenient one-a-day multivitamin for foundational wellness and energy.

How scoring works
$44.63($0.24 per serving)
iHerb
$ 44.63
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Analysis

This formula is perfect for those who want a high dose of B-vitamins for energy but don't want to swallow multiple capsules. It includes 11mg of iron and meaningful amounts of Vitamin C and zinc to support immune and metabolic health.

While it uses some standard synthetic forms, it provides exceptional value for the quantity of nutrients included. It is a great choice for budget-conscious people who still want a broad nutritional foundation.

Pros

  • Only one tablet required per day
  • Very affordable price per serving
  • Includes bioavailable mineral complexes
  • Broad support for energy and metabolism

Cons

  • Uses synthetic B12 and folic acid
  • The single tablet is quite large and hard
  • Lacks the herbal complexity of more expensive brands

Warnings

  • Always take with a full meal to minimize any stomach discomfort.
  • Monitor your iron intake if you are already consuming significant dietary iron.

Nutrient quality

78 High impact

Broad mineral support and high thiamin levels provide a solid nutritional base at a very accessible price point. The reliance on synthetic and less-active vitamin forms limits the total biological efficiency of the formula compared to premium options.

Ingredient transparency

99 Highest impact

Labels clearly quantify all thirty-plus active ingredients, providing a high degree of transparency for the daily consumer. This detailed disclosure allows for straightforward assessment of the product’s contribution to overall health goals.

Customer satisfaction

89 Highest impact

Strong average ratings indicate that the product reliably meets the expectations of users seeking a straightforward, high-potency multivitamin. Feedback suggests high utility for energy support and general health maintenance.

Value for money

94 Highest impact

An exceptionally low cost per serving makes this one of the most budget-friendly options available for high-potency nutrition. While basic forms are used, the price-to-potency ratio is outstanding for general health support.

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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 multi-nutrient 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 SupportB- CoverageA Formula Quality

Features high-potency B-vitamins and iron to support oxygen transport and mitochondrial energy production in a once-daily tablet. These foundational nutrients appear well aligned with maintaining physical stamina and preventing fatigue related to deficiency.

Iron is provided in the fumarate form, which is meaningfully dosed to support healthy red blood cell status. The formula targets the metabolic fuel pathway through robust levels of thiamine, riboflavin, and pantothenic acid for daily vitality.

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

Molybdenum, selenium, and riboflavin are provided in this multivitamin to support the body's internal enzymatic detoxification systems. These nutrients are essential cofactors for pathways that neutralize environmental toxins and metabolic byproducts.

The formula utilizes bioavailable mineral complexes to ensure efficient uptake for daily metabolic support. While it provides excellent foundational cofactors, it lacks specific botanical extracts commonly used for concentrated liver protection.

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

This once-daily multivitamin provides a solid foundation for skin health through 750 mg of vitamin C and 15 mg of zinc. These levels are meaningful for supporting the enzymatic processes of collagen synthesis and protecting skin from oxidative damage.

The inclusion of biotin and a broad range of B-vitamins also contributes to general tissue maintenance. While it lacks specialized ingredients like ceramides or direct collagen peptides, its well-dosed mineral and vitamin profile offers effective foundational support for a smoother appearance.

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

Cholecalciferol and manganese ascorbic acid complex provide clinical support for skeletal transport and enzymatic mineral metabolism. Boron and calcium ascorbate further contribute to foundational skeletal maintenance within a comprehensive multivitamin.

The lack of vitamin K2 limits its ability to activate bone-building proteins and optimize calcium deposition. This formula provides broad trace mineral support but lacks the structural mineral density required for an intensive bone builder.

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

This selection is a high-potency daily multivitamin that includes essential nutrients like Thiamin, B6, and Choline. These compounds are necessary for brain energy metabolism and foundational neurological function.

While broad, it lacks direct nootropics like memory-enhancing botanicals or focus-supporting amino acids. It serves best as a nutritional baseline to support the brain's general metabolic needs.

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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
2850 mcg
Vitamin C (Calcium Ascorbate, Manganese Ascorbic Acid Complex, Zinc Ascorbate)
250 mg
Vitamin D3 (Cholecalciferol)
10 mcg
Vitamin E (D-Alpha-Tocopheryl Succinate)
67 mg
Thiamin
85 mg
Riboflavin
85 mg
Niacin (Niacinamide)
85 mg
Vitamin B6 (Pyridoxine Hydrochloride)
85 mg
Folate (Folic Acid)
714 mcg DFE
Vitamin B12 (Cyanocobalamin)
90 mcg
Biotin
90 mcg
Pantothenic Acid (Calcium D-Pantothenate)
85 mg
Calcium (Calcium Ascorbate, Calcium Carbonate)
40 mg
Iron (Iron Fumarate)
11 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
Choline Bitartrate
85 mg
PABA
85 mg
Inositol
85 mg
Citrus Bioflavonoid Complex
25 mg
Rutin
21 mg
Hesperidin
5 mg
Boron (Boron Amino Acid Complex)
1 mg
Adults 18–50 Women
Report overview
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
This multivitamin provides manganese in a bioavailable organic complex form at a safe and effective dosage. The label is perfectly clear regarding mineral weights, and the product offers outstanding value for money. It is an excellent choice for budget-conscious consumers seeking quality mineral support.
PABA · 85 mg OverallScore88
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB- Value
This one-a-day multivitamin provides a robust 85 mg dose of PABA alongside a broad mineral profile. It is a convenient option for daily nutritional support with significant PABA content.
Niacin (Niacinamide) · 85 mg OverallScore87
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC Value
Mega-One provides a potent 85 mg dose of niacinamide for high-potency daily energy and skin health support. It is a highly transparent formula at a very competitive price point, offering excellent value for long-term use. This one-per-day tablet is an efficient and safe choice for general wellness.
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