Transparent Labs Grass-Fed Whey Isolate vs Thorne Whey Protein Isolate

Both are grass-fed-style whey isolates with no artificial sweeteners, so the choice comes down to protein per scoop and certification. Transparent Labs delivers 28 g protein and 130 calories per 34.9 g scoop, with a wide flavor lineup and a 30-serving tub. Thorne delivers 21 g protein and 100 calories per serving, adds digestive enzymes bromelain and papain, and carries NSF Certified for Sport, which matters if you are drug-tested. Reviewers rate Thorne well (4.6 from about 1,900 ratings) and owners of both praise mixability and taste; Transparent Labs wins on protein density, Thorne on certification and digestibility.

• Choose the Transparent Labs Grass-Fed Whey Protein Isolate if you want the most protein per scoop, a grass-fed sourcing story, and more flavor choices.
• Choose the Thorne Whey Protein Isolate if you need NSF Certified for Sport, added digestive enzymes, or a lower-calorie, lower-sugar serving.