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Whey Protein Isolate Dutch Chocolate

SR Sports Research
4.6
★ ★ ★ ★ ★
(4080 ratings)
Sodium 220 mg
Iron 3 mg
Leucine 1000 mg
Potassium 347 mg
Protein (unspecified) 25 Gram(s)
Product Image
Score73
A solid whey-isolate protein powder with useful vitamin D and mineral additions. It is not a targeted heart-health product, and missing flavor details reduce transparency.
How scoring works
Quantity:5 Pound(s) • (56 servings)
Goals:
Heart Health

Score 73

A solid whey-isolate protein powder with useful vitamin D and mineral additions. It is not a targeted heart-health product, and missing flavor details reduce transparency.
How scoring works
$89.95($1.60 per serving)
iHerb
$ 120.03
iHerb
$ 120.03
Amazon
$ 89.95
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Analysis

The 25 g whey isolate serving provides concentrated protein with relatively little carbohydrate. Added leucine, vitamin D3, calcium, and potassium complement general nutrition and muscle-maintenance needs.

The disclosed 1 g leucine amount is below the usual meal-level trigger used for focused muscle protein synthesis. Iron and potassium contribute to daily intake but are too modest or poorly specified for dedicated supplementation.

Heart-health relevance is limited because the powder lacks omega-3s, magnesium, vitamin K2, CoQ10, or a vascular-focused active. Moderate sodium and 3 g MCT oil are acceptable formula features, but neither makes it a cardiovascular product.

Who is it for
  • Adults seeking a whey isolate protein powder
  • People wanting vitamin D with protein
  • Users comfortable with dairy-based supplements
Best for
  • Daily protein intake
  • Post-exercise protein use
  • General nutrition support

Pros

  • Provides 25 g whey protein isolate
  • Includes vitamin D3
  • Adds potassium and calcium
  • Leucine amount is disclosed

Cons

  • Weak heart-health pathway coverage
  • Leucine amount is below a focused trigger range
  • Potassium and iron forms are unspecified
  • Flavor and sweetener ingredients are missing

Warnings

  • Whey protein makes the powder unsuitable for people with a milk-protein allergy
  • The missing flavor and sweetener list limits allergy and tolerance screening
  • Three grams of MCT oil may cause digestive discomfort in sensitive users

Nutrient quality

81 Highest impact

Whey isolate and vitamin D3 provide useful, well-regarded forms, and the protein amount is substantial. Undisclosed mineral forms, modest leucine, and a low-value MCT addition limit the formula's precision.

Ingredient transparency

75 High impact

Every listed active has a stated amount, and no proprietary blend obscures the formula. Missing source forms for several minerals and absent usage and excipient details leave important label questions.

Customer satisfaction

72 High impact

The supplied average rating is strong and is supported by a large review count. No detailed feedback is available to judge repeated complaints or whether experiences consistently match the intended use.

Value for money

62 Moderate impact

A substantial whey-isolate serving and broad customer uptake provide practical value. The premium cost is less compelling because supporting nutrients use unclear forms and the added leucine is modest.

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Goals

Heart Health
Impact
Moderate effect
F Goal FitD+ Strength of SupportF CoverageB+ Formula Quality
Vitamin D · 20 mcg

Whey isolate supplies high-quality protein, while potassium and vitamin D provide modest general support. These nutrients do not make the powder a targeted cardiovascular product.

No omega-3s, K2, magnesium, CoQ10, or vascular active is included. Sodium is moderate and the added MCT fat offers no clear heart-health advantage.

Study evidence
Potassium Supportive 182 studies
Vitamin D Mixed 164 studies

Ingredients

IngredientAmount per serving
Calories
150 Calorie(s)
Total Fat
4 Gram(s)
Total Carbohydrate
4 Gram(s)
Protein
25 Gram(s)
Vitamin D (Cholecalciferol)
20 mcg
Calcium
133 mg
Iron
3 mg
Sodium
220 mg
Potassium
347 mg
Whey Protein Isolate
25 Gram(s)
Medium Chain Triglycerides
3 Gram(s)
L-Leucine
1000 mg
Gluten Free Adults 18–50 Vegetarian
Report overview
Sodium · 220 mg OverallScore52
D Active Ingredient Quality & BioavailabilityC- Dose, Safety & Label TransparencyD+ Value

An undisclosed sodium source limits confidence in ingredient quality. The low sodium dose is unlikely to replace heavy sweat losses by itself. Supporting electrolytes are included, though their form quality is uncertain, while the serving cost offers no clear advantage for electrolyte support.

Iron · 3 mg OverallScore45
F Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

The 3 mg iron serving is below the effective target range for focused supplementation. The label states an iron amount but does not identify the iron compound. No qualifying vitamin C, folate, or vitamin B12 support is provided. Cost per serving is far above the collection benchmark.

Leucine · 1000 mg OverallScore38
F Active Ingredient Quality & BioavailabilityC- Dose, Safety & Label TransparencyF Value

Leucine comes from a whole-protein amino acid profile rather than a free-form addition; the powder has no disclosed processing to improve solubility. The serving amount is below the recognized trigger range for muscle protein synthesis; the amount is clearly disclosed, and the scoop is larger than the standard range. Cost per gram of active leucine is high for the disclosed dose; whey protein also makes the formula unsuitable for people with a milk-protein allergy.

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Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. Vitamin D supplementation for cardiometabolic risk markers in pregnant women based on the gestational diabetes mellitus or obesity status : a randomized clinical trial.
    Yin WJ; Wang P; Ma SS; Tao RX; Hu HL; Jiang XM; Zhang Y; Tao FB; Zhu P · European journal of nutrition · 2024
    Randomized trial1,537 participantsHeart Health forVitamin D
  7. Paricalcitol and endothelial function in chronic kidney disease trial.
    Zoccali C; Curatola G; Panuccio V; Tripepi R; Pizzini P; Versace M; Bolignano D; Cutrupi S; Politi R; Tripepi G; Ghiadoni L; Thadhani R; Mallamaci F · Hypertension (Dallas, Tex. : 1979) · 2015
    Randomized trial88 participantsHeart Health forVitamin D
  8. Vitamin D Supplementation, Serum 25(OH)D Concentrations and Cardiovascular Disease Risk Factors: A Systematic Review and Meta-Analysis.
    Mirhosseini N; Rainsbury J; Kimball SM · Frontiers in cardiovascular medicine · 2020
    Meta-analysis81 studies pooledHeart Health forVitamin D
  9. Does vitamin D supplementation modulate metabolic risk factors of cardiovascular disease? A systematic review and meta-analysis of clinical trials.
    Abumweis S; Alqadi S; Al Tarteer A; Alrefai W; Alzoughool F; Jew S; Qudah T · Asia Pacific journal of clinical nutrition · 2026
    Meta-analysis45 studies pooledHeart Health forVitamin D
  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 forVitamin D