Best Protein Powder Without Artificial Sweeteners After 40
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Most flavored protein powders rely on sucralose or acesulfame potassium to stay sugar-free — including a few we’ve reviewed and still recommend for other reasons. If avoiding artificial sweeteners specifically is your priority, here’s which of our reviewed picks actually qualify, and which ones don’t.
Our picks with no artificial sweeteners
| Pick | Product | Sweetener |
|---|---|---|
| Cleanest label overall | Naked Whey (unflavored) | None — one ingredient, no sweetener of any kind |
| Best clear whey option | Isopure Clear Protein | Stevia only |
| Best flavored regular whey | Onnit Grass Fed Whey Isolate | Stevia and monk fruit extract |
See our full Naked Whey review, Isopure Clear Protein review, and Onnit Whey Isolate review.
Which of our other reviewed products don’t qualify
To be transparent: both NutraBio Clear Whey and GHOST Clear Whey — both products we recommend elsewhere on this site for value and protein content — use sucralose and acesulfame potassium to hit zero sugar. That’s a completely standard and well-studied approach, and it’s not a reason to avoid them if artificial sweeteners aren’t a concern for you. But if a fully natural-sweetener label is the deciding factor, Isopure Clear Protein is the better fit among the clear whey options we’ve reviewed.
Bottom line
Naked Whey (unflavored) has the simplest possible label with zero sweetener. If you want a flavored option, Isopure Clear Protein and Onnit both use only natural sweeteners like stevia and monk fruit.
Sources
- Manufacturer ingredient lists and product pages for Naked Whey, Isopure Clear Protein, Onnit Grass Fed Whey Isolate, NutraBio Clear Whey Isolate, and GHOST Clear Whey.
- Ingredient formulations can change between production runs — always check the label on the container you actually receive.