B 50 Complex

B 50 Complex

Thompson4.7 (2,862 ratings)
Format:Capsule Quantity: 60 Capsule(s) · 60 servings
Goals
$5.38 $0.08 per serving

Product analysis

63 out of 100

B 50 Complex offers low-cost B-vitamin support for normal energy metabolism when dietary intake falls short. The added blend lacks component details, leaving its extra contribution unclear.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality59

Several B-vitamin sources are clearly identified, including niacinamide and calcium pantothenate. Standard riboflavin is less favored in the form comparison, and some preparations remain unspecified.

Ingredient Transparency70

The listed amounts are clear, but some source forms are omitted. The blend total also does not identify its individual components.

Value For Money64

The low serving cost works well for riboflavin, niacin and B6. Value is less favorable for some other nutrients and cannot be established for every contribution.

Customer Satisfaction86

Customer ratings indicate high satisfaction. Thousands of ratings provide a broad base of feedback.

Product Focus37

The clearest role is filling B-vitamin gaps involved in normal energy metabolism. The unidentified blend makes its additional role harder to judge.

Format
Capsule
Container
60 Capsule(s)
Per serving
$0.08
Customer rating
4.7 · 2,862 ratings
Report analysis

Goals

Impact
High effect
A Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin B5 · 50 mgRiboflavin · 50 mgThiamin · 50 mgVitamin B12 · 50 mcg

Thiamin, riboflavin, niacin, B6, folate and pantothenic acid support normal energy metabolism or help address deficiency-related tiredness. These roles do not establish an extra energy boost when nutrient intake is adequate. B12 is also present, but its 50 mcg per serving falls below the saved contribution threshold; that does not mean it is nutritionally ineffective.

How this product is rated for Energy

Ingredient fit93

Six B vitamins contribute, mainly through nutritional sufficiency.
Goal fit
Six B vitamins contribute, mainly through nutritional sufficiency.
Dose adequacy
Most credited vitamins reach the saved amount references; pantothenic acid receives partial amount recognition.

Pathways0

The contribution concerns nutrient sufficiency; no listed direct alertness, exercise or stress-fatigue pathway receives coverage.
Depth
No listed direct energy pathway receives coverage from the credited nutrients.
Breadth
No listed pathway reaches the coverage threshold.

Evidence78

Riboflavin provides the strongest recognized evidence contribution at its saved amount. Its practical benefit remains subject to the population and nutrient-status limits described above.
Evidence strength
Riboflavin leads the evidence contribution among ingredients at recognized amounts.
Studied preparation
The credited ingredients meet the saved preparation criterion; this does not establish benefit for every user.

Formulation logic100

The credited ingredients require no missing partner, and no configured conflict was found. All credited amounts pass the saved minimum contribution threshold.
Partner coverage
Every credited ingredient can contribute without a missing required partner.
Conflicts
No configured ingredient conflict was identified.
Effective doses
All credited ingredients pass the saved minimum amount threshold; this is not proof of a clinically effective dose.
Study evidence
Thiamin Disputed 12 studies
Impact
High effect
A- Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 50 mcgNiacin · 50 mgVitamin B12 · 50 mcgRiboflavin · 50 mgThiamin · 50 mgVitamin B5 · 50 mgVitamin B6 · 50 mg

B vitamins help the body use carbohydrate, fat and protein through their normal roles in energy metabolism. Filling a nutritional gap supports those essential processes, but extra B vitamins have not been shown here to make the body burn more energy when intake is adequate. Their normal metabolic roles should therefore be distinguished from a faster metabolic rate or lasting weight loss.

How this product is rated for Metabolism Support

Ingredient fit85

B vitamins supply the main metabolic connection; the saved amount comparison describes the declared serving rather than a proven boost.
Goal fit
B vitamins provide the main metabolic connection alongside ingredients serving other purposes.
Dose adequacy
The declared amounts reach the reference ranges unevenly, without establishing that increasing them would increase energy expenditure.

Pathways0

No tracked route to increased energy expenditure is covered by the included nutrients.
Depth
No tracked pathway for increasing energy expenditure receives coverage.
Breadth
None of the tracked pathways reaches the coverage threshold.

Evidence100

B vitamins receive evidence and preparation findings, while the supplied scientific context limits claims about a faster metabolic rate.
Evidence strength
Thiamin leads the saved evidence finding, but normal carbohydrate metabolism does not demonstrate an extra increase in energy expenditure.
Studied preparation
The counted preparations receive study matches in the saved findings; this does not establish a direct metabolism boost from each form.

Formulation logic100

No required companion or configured conflict is identified, and the counted amounts clear the minimum comparison threshold.
Partner coverage
No required companion is missing for the counted ingredients; this does not establish an extra benefit from their combination.
Conflicts
No configured ingredient conflict is identified in the saved findings.
Effective doses
All counted ingredients clear the saved minimum amount threshold, which is a comparison cutoff rather than a proven metabolism-boosting dose.
Study evidence
Biotin Supportive 5 studies
Niacin Supportive 17 studies
Thiamin Supportive 11 studies
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per servingScore
Thiamine (Thiamine Mononitrate)
50 mg 76
Riboflavin
50 mg 72
Niacin (Niacinamide)
50 mg 81
Vitamin B6 (Pyridoxine Hydrochloride)
50 mg 75
Folic Acid
400 mcg 58
Vitamin B12 (Cyanocobalamin)
50 mcg
Biotin
50 mcg
Pantothenic Acid (Calcium Pantothenate)
50 mg 70
Base Complex Blend
205 mg
Adults 18–50
Report overview
A- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA+ Value
A+ Ingredient Form & Label QualityF Dose, Safety & Label TransparencyA+ Value
Riboflavin · 50 mg OverallScore72
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
The serving lists 50 mg of riboflavin, an amount the evaluation considers substantial for metabolic support. Standard riboflavin must be converted by the body before participating in energy metabolism.
How this ingredient is rated

Active Ingredient Quality & Bioavailability30

The listed form is standard riboflavin, which the body converts before it participates in energy metabolism.
Riboflavin Form Quality
The listed form is standard riboflavin, which the body converts before it participates in energy metabolism.

Dose, Safety & Label Transparency100

The serving lists 50 mg of riboflavin, an amount the evaluation considers substantial for metabolic support. The saved ingredients panel has no artificial colors or synthetic sweeteners flagged by the evaluation.
Dosage for Energy & Metabolism
The serving lists 50 mg of riboflavin, an amount the evaluation considers substantial for metabolic support.
R5P Elemental Yield Transparency
The phosphate-yield question does not apply to the listed standard riboflavin.
Additive Purity
The saved ingredients panel has no artificial colors or synthetic sweeteners flagged by the evaluation.

Value100

The whole-product serving costs about $0.09.
Price per Serving Value
The whole-product serving costs about $0.09.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
    Fouad S; Ibrahim GE; Hussein AMS; Ibrahim FA; El Gendy A · Heliyon · 2021
    Non-randomized trialEnergy forRiboflavin
  2. Vitamin B status in patients with chronic fatigue syndrome.
    Heap LC; Peters TJ; Wessely S · Journal of the Royal Society of Medicine · 1999
    Case-control study30 participantsEnergy forRiboflavin
  3. B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
    Bager P; Hvas CL; Hansen MM; Ueland P; Dahlerup JF · Molecular medicine (Cambridge, Mass.) · 2023
    Observational studyEnergy forRiboflavin
  4. Metabolic features of chronic fatigue syndrome.
    Naviaux RK; Naviaux JC; Li K; Bright AT; Alaynick WA; Wang L; Baxter A; Nathan N; Anderson W; Gordon E · Proceedings of the National Academy of Sciences of the United States of America · 2024
    Case-control study84 participantsEnergy forRiboflavin
  5. Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
    Bregje Jaeger, Nina N Stolwijk, Femke Aaldering, Charlotte A Ruys, Marije Smits, Nicole I Wolf, Carla E M Hollak, Annet M Bosch · Journal of Inherited Metabolic Disease · 2026
    Systematic review381 studies pooledEnergy Metabolism Support forRiboflavin
  6. Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
    Smidt LJ; Cremin FM; Grivetti LE; Clifford AJ · Journal of gerontology · 1991
    Randomized trial80 participantsEnergy forThiamin
  7. Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Alimentary pharmacology & therapeutics · 2021
    Randomized trial40 participantsEnergy forThiamin
  8. Dietary reference values for thiamin.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson JL; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Nowicka G; Pentieva K; Sanz Y; Siani A; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Lamberg-Allardt C; Przyrembel H; Tetens I; Gudelj Rakic J; Ioannidou S; de Sesmaisons-Lecarré A; Forss AC; Neuhäuser-Berthold M · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusEnergy forThiamin
  9. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  10. Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results from an open-label extension of the TARIF study.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Scandinavian journal of gastroenterology · 2022
    Randomized trialEnergy forThiamin
  11. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
    Dułak NA; Rytlewska M; Jaskólska M; Chmielewski M · Rheumatology international · 2024
    Case series3 participantsEnergy forVitamin B12
  12. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
    Markun S; Gravestock I; Jäger L; Rosemann T; Pichierri G; Burgstaller JM · Nutrients · 2021
    Meta-analysis6,276 participants16 studies pooledEnergy forVitamin B12
  13. Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
    Zubair AS; Saab L; Scharer K; Khokhar B · Brain circulation · 2024
    Qualitative study5 participantsEnergy forVitamin B12
  14. Cobalamin deficiency: clinical picture and radiological findings.
    Briani C; Dalla Torre C; Citton V; Manara R; Pompanin S; Binotto G; Adami F · Nutrients · 2014
    Narrative reviewEnergy forVitamin B12
  15. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  16. Biotin and contribution to normal energy-yielding metabolism: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusMetabolism Support forBiotin
  17. Pregnancy and lactation alter biomarkers of biotin metabolism in women consuming a controlled diet.
    Perry CA; West AA; Gayle A; Lucas LK; Yan J; Jiang X; Malysheva O; Caudill MA · The Journal of nutrition · 2015
    Clinical trial75 participantsMetabolism Support forBiotin
  18. Survey of the effect of biotin on glycemic control and plasma lipid concentrations in type 1 diabetic patients in kermanshah in iran (2008-2009)
    Hemmati M, Babaei H, Abdolsalehei M · Oman Medical Journal · 2013
    Randomized trial70 participantsMetabolism Support forBiotin
  19. Chromium picolinate and biotin combination improves glucose metabolism in treated, uncontrolled overweight to obese patients with type 2 diabetes
    César A Albarracin, Bobby C Fuqua, James L Evans, Ira D Goldfine · Diabetes/Metabolism Research and Reviews · 2008
    Randomized trial348 participantsMetabolism Support forBiotin
  20. Biotin supplementation reduces plasma triacylglycerol and VLDL in type 2 diabetic patients and in nondiabetic subjects with hypertriglyceridemia
    Cristina Revilla-Monsalve, Iván Zendejas-Ruiz, Sergio Islas-Andrade, Armida Báez-Saldaña, Miguel Angel Palomino-Garibay, Pedro Martín Hernández-Quiróz, Cristina Fernandez-Mejia · Biomedicine & Pharmacotherapy · 2006
    Randomized trial33 participantsMetabolism Support forBiotin