E.S.P. Pre-Workout Fruit Punch

E.S.P. Pre-Workout Fruit Punch

Metabolic Nutrition4.5 (53 ratings)
Format:Powder Quantity: 300 Gram(s) · 30 servings
Goals
$34.99 $1.16 per serving

Product analysis

36 out of 100

E.S.P. Pre-Workout Fruit Punch contains ingredients intended to support alertness and exercise, alongside B vitamins that support normal energy use. Unclear individual stimulant amounts make it difficult to judge the effect of a serving.

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

Nutrient Quality20

Ingredient forms are unspecified, limiting a useful comparison of their quality. The blend also lacks an individual breakdown, so its total amount does not clarify its makeup.

Ingredient Transparency38

Some serving amounts and all ingredient forms are unstated. The blend also lacks an individual breakdown, making the formula difficult to compare.

Value For Money38

Potassium offers better value than magnesium and niacin at the serving price. The remaining ingredients lack a reliable cost comparison, leaving total value uncertain.

Customer Satisfaction67

Customer ratings are generally positive. The relatively small review pool limits how confidently satisfaction can be generalized.

Product Focus34

The intended use centers on pre-workout energy and alertness. Unclear individual amounts make the likely practical contribution harder to judge.

Format
Powder
Container
300 Gram(s)
Per serving
$1.16
Customer rating
4.5 · 53 ratings
Report analysis

Goals

Impact
Moderate effect
D+ Ingredient FitF PathwaysB+ EvidenceA Formulation Logic
Magnesium · 200 mgVitamin B12 · 500 mcgPotassium · 200 mg
Study evidence
Magnesium Supportive 4 studies
Potassium Supportive 2 studies
Stress Relief
Impact
Situational effect
F Ingredient FitF PathwaysF EvidenceB Formulation Logic
Magnesium · 200 mgVitamin B12 · 500 mcgVitamin B6 · 4.23 mg
Study evidence
Magnesium Supportive 13 studies
Impact
Lower effect
D Ingredient FitF PathwaysC- EvidenceB+ Formulation Logic
Magnesium · 200 mgVitamin B12 · 500 mcgVitamin B6 · 4.23 mg
Study evidence
Magnesium Supportive 158 studies
Niacin Supportive 105 studies
Potassium Supportive 182 studies
Vitamin B6 Supportive 44 studies

Ingredients

IngredientAmount per servingScore
Calories
8 Calorie(s)
Total Fat
0 Gram(s)
Total Carbohydrates
2 Gram(s)
Total Protein
0 Gram(s)
Calcium Gluconate
200 mg
Magnesium Gluconate
200 mg 53
Potassium Gluconate
200 mg 55
Sodium
30 mg
Vitamin B3
20 mg
Vitamin B6
4.23 mg
Vitamin B12
500 mcg
Dual Support Anti-Aromatase Complex
0 NP
Gluten Free Adults 18–50 Sugar Free
Report overview
Magnesium · 200 mg OverallScore53
D Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyF Value
Potassium · 200 mg OverallScore55
B+ Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyF Value
Report alternatives

Sources

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

  1. 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
  2. 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
  3. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  4. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  5. [Efficacy of potassium N-acetylaminosuccinate (Cogitum) in the treatment of asthenic syndrome: results of double-blind placebo-controlled trial].
    Esin RG; Khayrullin IK; Esin OR; Fatykhova AF; Gismatullina EI; Isaeva YN · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2023
    Randomized trial37 participantsEnergy forPotassium
  6. Human resting energy expenditure in relation to dietary potassium.
    Dériaz O; Thériault G; Lavallée N; Fournier G; Nadeau A; Bouchard C · The American journal of clinical nutrition · 1991
    Randomized trial8 participantsEnergy forPotassium
  7. 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
  8. 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
  9. 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
  10. 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
  11. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  12. Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
    Zhao L; Hu M; Yang L; Xu H; Song W; Qian Y; Zhao M · Journal of cardiovascular pharmacology · 2020
    Meta-analysis544,581 participants18 studies pooledHeart Health forMagnesium
  13. Effects of magnesium supplementation on improving hyperglycemia, hypercholesterolemia, and hypertension in type 2 diabetes: A pooled analysis of 24 randomized controlled trials.
    Xu L; Li X; Wang X; Xu M · Frontiers in nutrition · 2023
    Meta-analysis1,325 participants24 studies pooledHeart Health forMagnesium
  14. The effect of lowering blood pressure by magnesium supplementation in diabetic hypertensive adults with low serum magnesium levels: a randomized, double-blind, placebo-controlled clinical trial.
    Guerrero-Romero F; Rodríguez-Morán M · Journal of human hypertension · 2009
    Randomized trial82 participantsHeart Health forMagnesium
  15. Positive effects of magnesium supplementation in metabolic syndrome.
    Kisters S; Kisters K; Werner T; Vormann J; Tokmak F; Westhoff T; Gröber U; Predel HG; Reuter H · International journal of clinical pharmacology and therapeutics · 2024
    Randomized trial54 participantsHeart Health forMagnesium
  16. Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
    Norouzzadeh M; Rashedi MH; Mahdavi-Mazdeh G; Kosari A; Shahinfar H · Current atherosclerosis reports · 2026
    Meta-analysisHeart Health forMagnesium
  17. Differential effect of two nicotinic acid preparations on low-density lipoprotein subclass distribution in patients classified as low-density lipoprotein pattern A, B, or I.
    Superko HR; McGovern ME; Raul E; Garrett B · The American journal of cardiology · 2004
    Randomized trial180 participantsHeart Health forNiacin
  18. The ARBITER 6-HALTS Trial (Arterial Biology for the Investigation of the Treatment Effects of Reducing Cholesterol 6-HDL and LDL Treatment Strategies in Atherosclerosis): final results and the impact of medication adherence, dose, and treatment duration.
    Villines TC; Stanek EJ; Devine PJ; Turco M; Miller M; Weissman NJ; Griffen L; Taylor AJ · Journal of the American College of Cardiology · 2010
    Randomized trial315 participantsHeart Health forNiacin
  19. The effects of extended-release niacin on carotid intimal media thickness, endothelial function and inflammatory markers in patients with the metabolic syndrome.
    Thoenes M; Oguchi A; Nagamia S; Vaccari CS; Hammoud R; Umpierrez GE; Khan BV · International journal of clinical practice · 2008
    Randomized trial50 participantsHeart Health forNiacin
  20. Effect of niacin therapy on cardiovascular outcomes in patients with coronary artery disease.
    Duggal JK; Singh M; Attri N; Singh PP; Ahmed N; Pahwa S; Molnar J; Singh S; Khosla S; Arora R · Journal of cardiovascular pharmacology and therapeutics · 2010
    Meta-analysis5,137 participants7 studies pooledHeart Health forNiacin