Best Protein Powder Without Artificial Sweeteners
Protein powders from the NIH Dietary Supplement Label Database whose labels list no artificial sweeteners, ranked by how completely the label discloses what is in the product.
Why People Avoid Artificial Sweeteners
Most flavored protein powders are sweetened with sucralose, acesulfame potassium, or both, because they add sweetness without calories or cost. Aspartame is less common in powders because it breaks down with heat and time.
The reasons to avoid them are mostly preference and uncertainty rather than proven harm: aftertaste, GI symptoms in some people, and small studies raising questions about gut bacteria and glucose response. The World Health Organization advised against non-sugar sweeteners for weight control in 2023.
This list removes every product whose label names one of these sweeteners. Many survivors use stevia, monk fruit, sugar alcohols, or sugar instead, and the table notes which.
Results
1,109 of 2,413 on-market protein powder labels with an other-ingredients list name their protein source and list no sucralose, acesulfame potassium, aspartame, saccharin, or neotame.
Ranked by label detail (stated amounts, named forms, a complete other-ingredients list), then by fewest other ingredients. The ranking reflects what the label discloses, not product testing, purity, or efficacy.
| Product Name | Ingredients | Form |
|---|---|---|
| W+ 100% Whey Isolate Protein Joint Natural Flavor Biochem · 22.8 Gram(s) | Protein 20 g per serving3 other ingredients; no sweetener listed | whey isolate |
| Whey Protein Tahitian Vanilla Flavor IRONMAN · 46 Gram(s) | Protein 30 g per serving3 other ingredients; sweetened with sugar | whey |
| Whey Protein Swiss Chocolate Flavor IRONMAN · 48 Gram(s) | Protein 30 g per serving4 other ingredients; sweetened with sugar | whey |
| All Natural Pro-Optimal Whey Vanilla Flavor Dr. Mercola Premium Supplements · 30 Gram(s) | Protein 17 g per serving4 other ingredients; no sweetener listed | whey |
| Whey Satisfied Natural Vanilla Spice Flavor Douglas Laboratories · 17 Gram(s) | Protein 10 g per serving5 other ingredients; sweetened with stevia | whey |
| All Natural Pro-Optimal Whey Strawberry Flavor Dr. Mercola Premium Supplements · 30 Gram(s) | Protein 17 g per serving5 other ingredients; sweetened with stevia | whey |
| ProtoLyte Naturals 100% Whey Isolate Chocolate Fudge Cookie VMI Sports · 27.6 Gram(s) | Protein 21 g per serving6 other ingredients; sweetened with stevia | whey isolate |
| Lean Meal Grass-Fed Whey Protein Vanilla Adaptogen Research · 36 Gram(s) | Protein 16 g per serving6 other ingredients; no sweetener listed | whey |
| All Natural Pro-Optimal Whey Chocolate Flavor Dr. Mercola Premium Supplements · 30 Gram(s) | Protein 17 g per serving6 other ingredients; sweetened with stevia | whey |
| Ultra Protein Plus Natural Chocolate Flavor Douglas Laboratories · 30 Gram(s) | Protein 16 g per serving6 other ingredients; sweetened with stevia, monk fruit | pea protein |
Product names link to the original label record in the NIH Dietary Supplement Label Database. Labels go stale when products are reformulated; check the current package.
Search All Protein Powders
Open Supplement Search, choose the Protein Powder tab, and turn on the "Artificial sweeteners" chip under Exclude products containing. This page also requires a listed other-ingredients panel, since a label without one cannot show what it leaves out, so its count runs lower than the search page's.
Related
Data source: NIH Dietary Supplement Label Database, public domain (CC0 1.0). Index built August 9, 2026.