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Best Protein Powder

Gnarly Nutrition

Grass-Fed Whey Protein

Gnarly Nutrition Grass-Fed Whey Protein is a whey concentrate protein powder with 25 g of protein per 1/3 cup (39 g). It scores 84/100 on the TBPP Quality Score. It is NSF Certified for Sport and NSF Contents Certified.

NSF Certified for SportNSF Contents Certified
Our score
84/100
Methodology v1.0
Protein
25g
1/3 cup (39 g)
Sugar
2g
Per serving
Protein by weight
64%
Per serving
$3.15
$3.15 per 25 g protein

Nutrition per serving

Chocolate flavor, from the label.

Nutrition per serving
Serving size1/3 cup (39 g)
Protein25 g
Calories160
Carbohydrates6 g
Sugar2 g
Fat3.5 g
Sodium220 mg
Protein by weight64%
LeucineNot verified
BCAAsNot verified

How it scored

84 of 100 points. How we score

CriterionPointsWhy
Protein density14 / 3064% of each scoop is protein
Third-party testing25 / 25Lot-tested for banned substances
Label transparency20 / 20Fully disclosed formula, no amino spiking
Sugar10 / 102 g sugar per serving
Ingredient simplicity10 / 10Natural flavors and sweeteners
Verified label data5 / 57 of 7 label values verified

Formula and label

Formula and label
TypeWhey Concentrate
Protein sourcesWhey Protein Concentrate
Third-party testingNSF Certified for Sport, NSF Contents Certified
SweetenersStevia Leaf Extract
Proprietary blendNo
Added free amino acidsNo
DietaryGluten-Free, Soy-Free, Grass-Fed
AllergensMilk, Coconut
Made byGnarly Nutrition
Sold atgognarly.com, Amazon

Price

$62.95 for Canister (20 servings). About $3.15 per serving, or $3.15 per 25 g of protein.

Sizes: Can (20 servings), Box (10 sticks)

Flavors (3)

  • Chocolate
  • Vanilla
  • Mint Mocha

Sources

Re-verified 2026-10-14 from the brand's current site gognarly.com (gnarlynutrition.com redirects there). Brand Chocolate Supplement Facts image and back-of-pouch image: serving 1/3 cup (39 g), 20 servings, 160 kcal, 3.5 g fat (2.5 g saturated), 60 mg cholesterol, 6 g carbohydrate, 2 g fiber, 2 g sugars, 25 g protein, 220 mg sodium, 130 mg calcium, 2.3 mg iron, 350 mg potassium, digestive blend 58 mg (amylase, protease, lactase, cellulase, lipase). Ingredients: whey protein concentrate, cocoa powder, non-dairy creamer (coconut), natural flavors, sea salt, guar gum, stevia (leaf) extract, calcium silicate, konjac gum. Contains: milk (whey protein), coconut. Pouch states free from artificial flavors, sweeteners, gluten and soy; grass-fed 100% badge. Brand page states Chocolate and Vanilla are NSF Content Certified and NSF Certified for Sport (stick packs are not); NSF Certified for Sport also listed on nsfsport.com. The older Amazon formula (Trulicious sweetener blend, soy lecithin) is superseded. protein_pct_by_weight = 25/39. Brand FAQ separately says one serving is 45 g, which conflicts with the 39 g label; the label value is used. Price $62.95 for the 20-serving can on the brand site (10-stick box $39.50). Leucine/BCAA not stated.

Good to know

Last checked 2026-10-14. Labels change, so check the package before buying if you have allergies. If you are pregnant, nursing or buying for a child, ask your doctor before adding a supplement.