If muscle recovery and daily protein intake are your goals, this delivers. You're getting 24g of **protein** per scoop from a blend led by whey isolate, followed by whey concentrate and hydrolyzed whey. Isolate being the primary source means higher protein content with less fat and lactose per serving. At 120 calories with only 1.5g of fat and 1g of sugar, the protein-to-calorie ratio is strong.

The three-source whey blend gives you a mix of fast-absorbing (hydrolyzed and isolate) and moderate-absorbing (concentrate) protein, which supports both immediate post-workout recovery and sustained amino acid delivery. You're also picking up 130mg of **Calcium** and 200mg of **Potassium** naturally from the whey.

This is a protein product, not a multivitamin — so don't expect meaningful micronutrient support beyond what comes naturally with whey. The trace iron (0.7mg) and fiber (less than 1g) on the label are incidental, not dosed to move any health markers for you.

BioStacks
Optimum Nutrition

Gold Standard 100% Whey Protein, Double Rich Chocolate

Powder · 31g (About 1 Scoop) · 74 servings

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What it does

A protein formula with whey protein isolate, whey protein concentrate, hydrolyzed whey protein.

Whey Protein

Mixed formsGrade —

Provides dairy protein to help meet protein needs for muscle maintenance and recovery alongside resistance training.

Muscle
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Ingredients (3)

Calcium

130 mg

Trace amount — not scored

Iron

0.7 mg

Trace amount — not scored

Nutrition

Calories, macros & sodium.

  • Total Fat1.5 g
  • Saturated Fat1 g
  • Cholesterol55 mg
  • Sodium130 mg
  • Total Carbohydrate3 g
  • Dietary Fiber1 g
  • Total Sugars1 g
  • Protein24 g

Other ingredients

Acesulfame PotassiumSweetener

Older NTP rodent studies (1980s, contested) reported lymphoma and leukemia at very high chronic doses; modern reviews (FDA 2003, EFSA 2000) concluded no cancer risk at human exposure levels but the issue is not fully resolved (Mishra 2020 review). Animal evidence suggests gut microbiome disruption (Bian 2017 — male mice on Ace-K showed altered microbiota and metabolic markers). Manufacturing uses methylene chloride, with potential residue concerns. Purely cosmetic additive — risk:benefit unfavorable for supplements.

Natural and Artificial FlavorsFlavor

The 'artificial' component means synthetic chemicals are used, but the exact compounds are proprietary and not disclosed on the label. If you have sensitivities or allergies, you cannot verify what's in it. Products using only natural flavors are more transparent.

CocoaFlavor

Common food ingredient used for chocolate flavoring in supplements

Whey ProteinProtein Source

Common dairy-derived protein that sometimes appears in the other ingredients list due to label parsing

Sunflower LecithinEmulsifier

Non-GMO, non-allergenic emulsifier derived from sunflower seeds

Lab testing

How to take it

With or without food

On the label

31 Grams: About 1 scoop whey protein powder

Price check

$84.95

$1.15 / serving

$20$50$100

Pricier than 92% of 165 muscle supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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