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Sport +Caffeine Wild Berry

Nuun
4.5
★ ★ ★ ★ ★
(85 ratings)
Sodium 300 mg
Potassium 150 mg
Chloride 40 mg
Green Tea 53 mg
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Score70
Useful sodium and potassium support sports hydration in a convenient tablet. Undisclosed caffeine and weak green-tea standardization make stimulant effects hard to assess.
How scoring works
Quantity:10 Tablet(s) • (10 servings)
Goals:
Heart Health

Score 70

Useful sodium and potassium support sports hydration in a convenient tablet. Undisclosed caffeine and weak green-tea standardization make stimulant effects hard to assess.
How scoring works
$5.99($0.59 per serving)
iHerb
$ 5.99
Vitacost
$ 6.23
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Analysis

Sodium at 300 mg and potassium at 150 mg create a reasonable electrolyte base for exercise. Chloride adds a smaller contribution, while magnesium and calcium are lightly dosed.

The 53 mg green tea extract is not standardized for catechins, EGCG, or caffeine. Stimulant exposure therefore cannot be predicted despite caffeine being part of the product positioning.

Effervescent tablets are convenient for hydration during training, but the container holds only ten servings. The formula fits exercise hydration better than targeted heart support.

Who is it for
  • Adults seeking caffeinated sports hydration
  • People exercising in warm conditions
  • Users who prefer effervescent tablets
Best for
  • Workout hydration
  • Sodium replacement
  • Light caffeinated energy

Pros

  • Provides useful sodium
  • Includes potassium from two salts
  • Convenient effervescent format
  • Low sugar content

Cons

  • Caffeine amount is undisclosed
  • Green tea lacks EGCG standardization
  • Magnesium oxide is a weak form
  • Only ten servings

Warnings

  • Undisclosed caffeine may cause jitters, rapid heartbeat, anxiety, or sleep disruption.
  • The 300 mg sodium amount may not suit users on a medically prescribed sodium restriction.
  • Avoid combining it casually with coffee or other stimulants because total caffeine exposure is unknown.

Nutrient quality

74 High impact

The main electrolyte dose and dissolving format fit sports hydration. Weaker magnesium and undisclosed stimulant strength reduce formula quality.

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Ingredient transparency

71 High impact

Most electrolyte salts and amounts are stated clearly. Caffeine, green-tea potency, full directions, and inactive ingredients remain undisclosed.

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Customer satisfaction

59 Moderate impact

The average customer rating is strong. The modest rating base provides limited confidence in the average, while specific review experiences were not supplied.

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Value for money

75 High impact

The convenient hydration format and useful sodium amount provide fair value. Incomplete stimulant disclosure and modest secondary electrolytes limit category competitiveness.

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Report analysis

Goals

Impact
Moderate effect
D+ Goal FitD- Strength of SupportD CoverageB- Formula Quality
Magnesium · 25 mgGreen Tea · 53 mg

Potassium and hydration support may help cardiovascular function during exercise, but the potassium amount is modest relative to daily needs. Sodium substantially exceeds potassium in the serving.

Green tea lacks EGCG, catechin, and caffeine amounts, which prevents meaningful assessment of vascular benefit or stimulant exposure. The formula works better as a sports hydration tablet than as targeted heart support.

Study evidence
Green Tea Supportive 84 studies
Magnesium Supportive 158 studies
Potassium Supportive 182 studies

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Carbohydrates
2 Gram(s)
Total Sugars
1 Gram(s)
Calcium (Calcium Carbonate)
13 mg
Magnesium (Magnesium Oxide)
25 mg
Chloride (Potassium Chloride)
40 mg
Sodium (Sodium Bicarbonate, Sodium Carbonate)
300 mg
Potassium (Potassium Bicarbonate, Potassium Chloride)
150 mg
organic Green Tea extract
53 mg
Gluten Free Adults 18–50 Vegan Kosher Vegetarian
Report overview
B Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 300 mg sodium serving falls within the target range for athletic replenishment. Sodium bicarbonate supplies useful buffering, although the companion magnesium oxide is a weaker mineral form. Its low serving cost gives it strong value for this purpose. The caffeinated format may not suit evening use or people who are sensitive to stimulants.

A+ Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyD+ Value

Potassium bicarbonate and chloride combine alkalizing and electrolyte functions. The 150 mg amount is moderate but remains below the collection median, and the label does not fully separate compound weight from elemental yield. Relatively low serving cost and an electrolyte-focused format make the moderate amount reasonably useful.

B+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyB+ Value

Potassium chloride supplies a soluble functional salt with an additional useful cation, and the 40 mg amount provides only a low contribution to daily chloride intake. The effervescent tablet supports ready ionization, while the label clearly identifies both dose and source. Cost efficiency is good for the chloride delivered.

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Sources

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

  1. Green tea catechins and blood pressure: a systematic review and meta-analysis of randomised controlled trials.
    Khalesi S; Sun J; Buys N; Jamshidi A; Nikbakht-Nasrabadi E; Khosravi-Boroujeni H · European journal of nutrition · 2015
    Meta-analysis13 studies pooledHeart Health forGreen Tea
  2. Effect of Green Tea on Blood Pressure in Healthy Individuals: A Meta-Analysis.
    Yıldırım Ayaz E; Dincer B; Mesci B · Alternative therapies in health and medicine · 2023
    Meta-analysis680 participants9 studies pooledHeart Health forGreen Tea
  3. Green tea extract reduces blood pressure, inflammatory biomarkers, and oxidative stress and improves parameters associated with insulin resistance in obese, hypertensive patients.
    Bogdanski P; Suliburska J; Szulinska M; Stepien M; Pupek-Musialik D; Jablecka A · Nutrition research (New York, N.Y.) · 2012
    Randomized trial56 participantsHeart Health forGreen Tea
  4. Green tea intake lowers fasting serum total and LDL cholesterol in adults: a meta-analysis of 14 randomized controlled trials.
    Zheng XX; Xu YL; Li SH; Liu XX; Hui R; Huang XH · The American journal of clinical nutrition · 2011
    Meta-analysis1,136 participants14 studies pooledHeart Health forGreen Tea
  5. Effects of green tea on lipid profile in overweight and obese women.
    Li A; Wang Q; Li P; Zhao N; Liang Z · International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2024
    Meta-analysis1,818 participants15 studies pooledHeart Health forGreen Tea
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. Potassium intake, stroke, and cardiovascular disease a meta-analysis of prospective studies.
    D'Elia L; Barba G; Cappuccio FP; Strazzullo P · Journal of the American College of Cardiology · 2011
    Meta-analysis247,510 participants11 studies pooledHeart Health forPotassium
  12. Oral potassium supplementation for management of essential hypertension: A meta-analysis of randomized controlled trials.
    Poorolajal J; Zeraati F; Soltanian AR; Sheikh V; Hooshmand E; Maleki A · PloS one · 2017
    Meta-analysis1,213 participants23 studies pooledHeart Health forPotassium
  13. Joint association of urinary sodium and potassium excretion with cardiovascular events and mortality: prospective cohort study.
    O'Donnell M; Mente A; Rangarajan S; McQueen MJ; O'Leary N; Yin L; Liu X; Swaminathan S; Khatib R; Rosengren A; Ferguson J; Smyth A; Lopez-Jaramillo P; Diaz R; Avezum A; Lanas F; Ismail N; Yusoff K; Dans A; Iqbal R; Szuba A; Mohammadifard N; Oguz A; Yusufali AH; Alhabib KF; Kruger IM; Yusuf R; Chifamba J; Yeates K; Dagenais G; Wielgosz A; Lear SA; Teo K; Yusuf S; PURE Investigators · BMJ (Clinical research ed.) · 2019
    Cohort study103,570 participantsHeart Health forPotassium
  14. Effect of Potassium Supplementation on Endothelial Function: A Systematic Review and Meta-Analysis of Intervention Studies.
    D'Elia L; Cappuccio FP; Masulli M; La Fata E; Rendina D; Galletti F · Nutrients · 2023
    Meta-analysis332 participants5 studies pooledHeart Health forPotassium
  15. Effects of potassium supplementation on office, home, and 24-h blood pressure in patients with essential hypertension.
    Kawano Y; Minami J; Takishita S; Omae T · American journal of hypertension · 1999
    Randomized trial55 participantsHeart Health forPotassium