HeightFactor

HeightFactor

Advanced Nutrition by Zahler4.5 (2,472 ratings)
Format:Capsule Quantity: 120 Capsule(s) · 30 servings
Goals
$27.92 $0.93 per serving

Product analysis

48 out of 100

HeightFactor contains nutrients involved in normal energy use and may help when dietary intake falls short. Missing amounts and unclear mixture details make it harder to judge what a serving contributes.

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

Nutrient Quality27

The combined nutrient entry names several forms, but its composition is unclear. Chlorella and alfalfa preparations are unspecified, leaving their quality difficult to compare.

Ingredient Transparency51

Some ingredient amounts and forms are listed, but important details are missing. The composition of the combined nutrient declaration remains uncertain, limiting a clear serving comparison.

Value For Money40

Chlorella value cannot be established reliably. That uncertainty also prevents a clear judgment about the complete formula cost for what it provides.

Customer Satisfaction82

Customer feedback is generally very favorable across several thousand ratings. The sizable review base supports an established picture of satisfaction, without demonstrating an effect on height.

Product Focus65

The clearest supported role is helping meet nutritional needs related to energy. The hair-related contribution depends mainly on correcting low zinc intake, and neither role establishes increased height.

Format
Capsule
Container
120 Capsule(s)
Per serving
$0.93
Customer rating
4.5 · 2,472 ratings
Report analysis

Goals

Hair Health
Impact
Moderate effect
C Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Vitamin D · 10 mcgZinc · 11 mgLysine · 250 mgVitamin C · 100 mg
Study evidence
Iodine No effect 1 study
Lysine Supportive 1 study
Niacin Disputed 2 studies
Vitamin A Disputed 13 studies
Vitamin D Disputed 34 studies
Zinc Supportive 22 studies
Impact
High effect
B+ Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Iodine · 150 mcgVitamin D · 10 mcgVitamin B5 · 50 mgMagnesium · 75 mgRiboflavin · 50 mgThiamin · 50 mg
Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies
Thiamin Disputed 12 studies
Vitamin D Supportive 32 studies

Ingredients

IngredientAmount per servingScore
Vitamin A (Beta-Carotene)
750 mcg
Vitamin C (Ascorbic Acid)
100 mg
Vitamin D3 (Cholecalciferol)
10 mcg
Thiamine (Thiamine Hydrochloride)
50 mg 76
Riboflavin
50 mg 54
Niacin (Niacinamide)
50 mg 65
Vitamin B6 (Pyridoxine Hydrochloride)
50 mg 70
Pantothenic Acid (Calcium D-Pantothenate)
50 mg 70
Calcium (Calcium Citrate)
125 mg
Iodine (Kelp)
150 mcg 58
Magnesium (Magnesium Oxide)
75 mg
Zinc (Zinc Oxide)
11 mg
Chlorella cracked cell wall powder
800 mg
Alfalfa herb powder
500 mg
L-Lysine (L-Lysine Hydrochloride)
250 mg 55
Gluten Free Adults 18–50 Kosher Dairy Free Vegetarian
Report overview
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value
A serving provides 50 mg of thiamin, with a high cost per 100 mg of thiamin. It uses Thiamine Hydrochloride, a standard water-soluble form. The amount is an amount in the high-potency range for metabolic and neurological support.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

Thiamine Hydrochloride is a standard water-soluble thiamin form. No listed artificial sweeteners or colors were found among the specified additives.
Thiamin Chemical Form
Thiamine Hydrochloride is a standard water-soluble form.
Excipient Purity
No corn syrup, configured artificial sweeteners, titanium dioxide or configured artificial colors were identified.

Dose, Safety & Label Transparency100

The serving provides 50 mg of thiamin, an amount in the high-potency range for metabolic and neurological support. The amount is stated clearly.
Thiamin Dosage Potency
The 50 mg serving is an amount in the high-potency range for metabolic and neurological support.
Label Transparency & Proprietary Blends
The thiamin amount per serving is stated.

Value40

The cost per 100 mg of thiamin is high.
Price per Declared Dose
The cost per 100 mg of thiamin is high.
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
Each serving supplies 150 mcg of iodine. The cost per serving is high. The iodine form is unspecified. The marine source has no stated organic or clean-water origin claim.
How this ingredient is rated

Active Ingredient Quality & Bioavailability34

The iodine form is unspecified. The marine source has no stated organic or clean-water origin claim, leaving its purity uncertain.
Iodine Form & Bioavailability
The iodine form is unspecified.
Marine Source Purity & Sourcing
The marine source has no stated organic or clean-water origin claim, leaving its purity uncertain.

Dose, Safety & Label Transparency100

Each serving supplies 150 mcg of iodine. The iodine amount is stated.
Dosage Efficacy for Daily Support
Each serving supplies 150 mcg of iodine.
Dosage Safety & Upper Limits
That amount is below the stated adult upper intake limit.
Elemental Iodine Transparency
The iodine amount is stated.

Value20

The cost per serving is high.
Price Per Effective Serving
The cost per serving is high.
A- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyF Value
A serving provides 50 mg of niacin. The full product price per serving is high for the niacin contribution. It uses Niacinamide. The Niacinamide is generally non-flushing, but no explicit no-flush claim is recorded.
How this ingredient is rated

Active Ingredient Quality & Bioavailability86

It uses Niacinamide. The named Niacinamide is a form of vitamin B3.
Niacin Form & Goal Alignment
It uses Niacinamide.
Precursor Source Quality
The named Niacinamide is a form of vitamin B3.

Dose, Safety & Label Transparency67

The serving provides 50 mg of niacin, a modest amount. The Niacinamide is generally non-flushing, but no explicit no-flush claim is recorded.
Clarity of Chemical Form
The label identifies Niacinamide as the form.
Form-Specific Dosage Efficacy
The serving provides 50 mg of niacin, a modest amount.
Flush Risk & Safety Labeling
The Niacinamide is generally non-flushing, but no explicit no-flush claim is recorded.

Value20

The full product price per serving is high for the niacin contribution.
Price Per Effective Serving
The full product price per serving is high for the niacin contribution.
Report alternatives

Sources

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

  1. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  2. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  3. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  4. Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial.
    Hausenblas HA; Lynch T; Hooper S; Shrestha A; Rosendale D; Gu J · Sleep medicine: X · 2025
    Randomized trial80 participantsEnergy forMagnesium
  5. Total magnesium intake and risk of frailty in older women.
    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsEnergy forMagnesium
  6. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  7. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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 forRiboflavin
  13. 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
  14. 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
  15. 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
  16. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  17. 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
  18. Effect of Vitamin D Supplementation on Fatigue in Multiple Sclerosis: A Systematic Review and Meta-Analysis.
    López-Muñoz P; Torres-Costoso AI; Fernández-Rodríguez R; Guzmán-Pavón MJ; de Arenas-Arroyo SN; Basco-López JÁ; Reina-Gutiérrez S · Nutrients · 2023
    Meta-analysis345 participants5 studies pooledEnergy forVitamin D
  19. Vitamin D Supplementation in Adolescents and Young Adults With Juvenile Systemic Lupus Erythematosus for Improvement in Disease Activity and Fatigue Scores: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Lima GL; Paupitz J; Aikawa NE; Takayama L; Bonfa E; Pereira RM · Arthritis care & research · 2016
    Randomized trial40 participantsEnergy forVitamin D
  20. Vitamin D in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome After COVID-19 or Vaccination: A Randomized Controlled Trial.
    Kodama S; Nakata M; Konishi N; Yoshino M; Fujisawa A; Naganuma M; Kobayashi Y; Hirai Y; Kitagawa A; Miyokawa M; Mishima R; Teramukai S; Fukushima M · Nutrients · 2026
    Randomized trial91 participantsEnergy forVitamin D