MACROXRAY
Products
OptimizeCraveBenchmark
HomeProductsProtein PowderGrass-Fed Impact Whey Isolate (Unflavoured)
← Back to Protein Powder
MyProtein

Grass-Fed Impact Whey Isolate (Unflavoured)

Unflavoured · Truly Grass Fed® Whey Protein Isolate (Milk) (100%), Emulsifier (Sunflower Lecithin) · 30g serving

#28in Protein Powder(291)
1/3
XRay Score
79/100
Performance
P/kcal$P:F▾ CFb
At-a-Glance
26g
Protein /serving
—
Fiber /serving
109
kcal /serving
23.9g
Protein /100kcal
Performance
ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
Where to Buy
Myprotein InternationalBest value
1kg Tub · 33 servings
US$1.63/serving(approx.)
US$53.78 for pack
Buy Now
Check retailer for shipping
🇺🇸 Prices in USD
View more buying options

XRay Summary

  • Ranks #28 of 291 · XRay Score 79/100
  • Strength: Protein Efficiency (Top 2%)
  • Protein Source: Whey Isolate

Grass-Fed Impact Whey Isolate (Unflavoured) by MyProtein performs well above average in the protein powder category with an XRay Score of 79/100, placing #28 out of 291. Its strongest dimension is protein efficiency (top 2%), offering excellent protein-to-calorie efficiency. Built on whey isolate — a refined, fast-digesting protein with minimal fat and lactose.

How It Ranks

Ranked against 291 products in this category.

XRay Score5D weighted score across all dimensions
#28 of 291
79/100XRay Score
Protein Efficiencygrams of protein per 100 kcal — higher is better
#7 of 291
23.9g/100kcal26.0g/serving98th percentile
Value for Moneygrams of protein per unit of currency — higher is better
#123 of 207
16.1 g/US$41st percentile
Leannessprotein-to-fat ratio — higher is better
#8 of 260
51.9:197th percentile
Low Carbnet carbs per 100g — lower is better
No data
——
Fiberfiber per 100g — higher is better
No data
——

Leaderboard

XRay Score — Protein Powder (291 products)

RankProductProtein Eff.g/100kcalScore/100
#1
Impact Vegan Protein (Unflavoured)
Impact Vegan Protein (Unflavoured)
MyVegan
23.3g/100kcal97
···
#26
Impact Whey Protein Powder (Vanilla (+Collagen))
Impact Whey Protein Powder (Vanilla (+Collagen))
MyProtein
20.8g/100kcal79
—
Impact Whey Protein + Collagen (Vanilla)
Impact Whey Protein + Collagen (Vanilla)
MyProtein
20.8g/100kcal79
···
#28
Grass-Fed Impact Whey Isolate (Unflavoured)
Grass-Fed Impact Whey Isolate (Unflavoured)
MyProtein
23.9g/100kcal79
#29
Impact Whey Protein + Collagen (Chocolate)
Impact Whey Protein + Collagen (Chocolate)
MyProtein
21.1g/100kcal77
—
Impact Whey Protein Powder (Chocolate (+Collagen))
Impact Whey Protein Powder (Chocolate (+Collagen))
MyProtein
21.1g/100kcal77
See all 291 ranked →

Performance

Visual comparison across the 5 dimensions and macronutrient split.

Radar

How this product compares on each dimension — overlaid on the category median (gray). Larger area is always better. Hover any label for raw values and formula.

ProteinEfficiencyValue forMoneyLeannessLow CarbFiber
This productAverage Protein Powder(n=291)
Learn more about our methodology →

Macro Split

109kcal/serving
Protein
92%
Fat
4%
Carbs
4%

Nutrition

Macronutrient breakdown and product details.

NutrientPer Serving (30g)Per 100g
Energy109kcal363.33kcal
Protein26g86.67g
Total Fat0.5g1.67g
Sat. Fat0.1g0.33g
Carbohydrates1.1g3.67g
Fiber——
Sugar0.8g2.67g
Sodium80mg266.67mg

Shop

Best prices across retailers — shown in your selected currency.

ProductRetailerPricePer ServingShips to
1kg Tub1000g · 33 sv
Best Value
Myprotein International
AD, AL + 57 more
£42.49
£1.29/sv
Buy Now
1kg Tub1000g · 33 servings
Myprotein International
Best Value
£42.49
US$53.78
£1.29/serving
AD, AL + 57 more
Buy
Prices shown in each retailer's original currency. Shipping availability and delivery to your country depend on the retailer.

Disclaimer — All nutritional data and product information is provided to the best of our knowledge based on publicly available sources and may contain inaccuracies. MacroXray is not responsible for discrepancies between listed and actual product data. Nothing on this site constitutes medical, dietary, or nutritional advice. Always consult a qualified healthcare professional before making changes to your diet. Dietary restriction labels (e.g. gluten-free, vegan) are based on ingredient information and may not account for cross-contamination or manufacturing processes — always verify with the manufacturer if you have allergies or intolerances. Halal, Kosher and other certifications shown are based on product labeling or third party site descriptions; actual certification status may vary by region and should be confirmed with the certifying body or manufacturer. Prices shown are sourced from third-party retailers at the time of last scan and may have changed since then. MacroXray is not a retailer and does not sell products directly.

MACROXRAY

Your Protein. Your Rules. Ranked. We rank based on published nutrition data — no sponsored rankings, no mystery grades. Just numbers.

Product

  • Optimize
  • Crave
  • Benchmark
  • Products
  • Articles
  • Brands

Categories

  • Protein Powder
  • Clear Protein
  • RTD Shake
  • Protein Bar
  • Protein Crisps
  • Sweet Snack
  • Savoury Snack
  • Smoothie
  • Cooking Mix
  • Fresh & Chilled
  • Other

Company

  • About
  • Methodology
  • FAQ
  • Affiliate Disclosure
  • Privacy Policy
  • Terms of Service
  • Contact Us
© 2026 MacroXray. All rights reserved.
Text size
Some links are affiliate links. Affiliate disclosure
Buy Now