For muscle recovery and growth, each scoop gives you 20g of protein from grass-fed **Whey Protein Concentrate**. Research supports 20–40g of whey per serving for stimulating muscle protein synthesis, so one scoop hits the low end and two scoops puts you well within the optimal range.
The macros are reasonable for a concentrate — 140 calories, 2.5g fat, and 9g carbs per scoop. Whey concentrate retains more naturally occurring nutrients than isolate, though it comes with a bit more fat and carbs. You're also getting 150mg of **Calcium** and 230mg of **Potassium** as natural components of the whey.
The main tradeoff is protein density. At 20g protein in a 36g scoop, the protein-to-serving ratio is about 56% — lower than whey isolates which typically deliver 80%+ protein by weight. If you're counting macros tightly or need more protein per calorie, that's worth factoring in.
BioStacks
Best for
Ingredients (4)
Whey Protein Concentrate
100%Dose
20 g
Target
20–30 g
Form
Standard
Vitamin D
0.1 mcgTrace amount — not scored
Iron
1.2 mgTrace amount — not scored
Calcium
150 mgTrace amount — not scored
Nutrition
Calories, macros & sodium.
- Total Fat2.5 g
- Saturated Fat1.5 g
- Cholesterol60 mg
- Sodium150 mg
- Total Carbohydrate9 g
- Dietary Fiber1 g
- Total Sugars2 g
- Protein20 g
Other Ingredients (8)
SucraloseSweetener
Dose context matters. As a trace excipient in a tablet coating or capsule, the amount is minimal and not a meaningful concern. The evidence below applies to the gram-level intakes typical of sweetened protein powders, pre-workouts, and drink mixes: a 2022 human trial (Suez et al., Cell) showed sucralose disrupts gut bacteria and worsens blood sugar control in healthy adults, and a 2023 study (Schiffman et al.) found that sucralose-6-acetate — a compound formed when sucralose is digested — was genotoxic to human cells in vitro. It remains an artificial sweetener with no nutritional purpose.
MaltodextrinBinder
Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
CocoaFlavor
Common food ingredient used for chocolate flavoring in supplements
Gum BlendThickener
Generic term for a mixture of food-grade gums such as guar, xanthan, and acacia
Sea SaltFlavor
Basic food-grade salt used for taste in supplements
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
Whey ProteinProtein Source
Common dairy-derived protein that sometimes appears in the other ingredients list due to label parsing
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.