For muscle recovery and growth, **Whey Protein Isolate** at 24.8g per 32g serving gives you a strong protein-to-weight ratio of about 78%. WPI is the most refined form of whey — lower in lactose and fat than concentrate — making it a good option if your stomach is sensitive to dairy-based proteins.

The label highlights NZ grass-fed sourcing, and the formula is minimal: whey isolate, cocoa, flavoring, soy lecithin as an emulsifier, and MCTs. At 118 calories per serving with nearly 25g of protein, the macros are lean. You can take up to 3 servings daily around your workouts, which would put you at roughly 75g of protein from this product alone.

One thing to note: the label doesn't break down the amino acid profile. For muscle-building purposes, the leucine content per serving matters — most research points to 2.5–3g of leucine per meal as the threshold for triggering muscle protein synthesis. WPI typically delivers this at a 25g serving, but without the amino breakdown listed, you're estimating.

BioStacks
INC Sports Nutrition

100% WPI Chocolate Flavour 2kg

Powder · 32g (1 serve) · 62 servings

iHerbAmazon

Best for

Muscle

Ingredients (1)

Whey Protein Isolate

100%

Dose

24.8 g

Target

20–30 g

Form

Premium

Nutrition

Calories, macros & sodium.

  • Sodium109 mg

Other Ingredients (5)

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.

Medium Chain Triglyceride OilCarrier

Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent

CocoaFlavor

Common food ingredient used for chocolate flavoring 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

How to Take It

Take it anytime

Total daily protein is what matters — the post-workout "anabolic window" has not held up in controlled trials.

With or without food

On the label

Add 32g (3 scoops from 1kg tub or 1 heaped scoop from 2kg tub) to 200mL of water. Use 60-90 minutes prior to exercise and within 30 minutes after exercise. Use up to 3 serves a day.

General guidance based on the ingredients, not a substitute for the label or your doctor.

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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.

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