5 Best Protein Powders Without Artificial Sweeteners (With Data)

Most protein powders that call themselves "clean" still contain sucralose, acesulfame potassium, or aspartame - they just bury them in a long ingredient list where you have to know what to look for.

This Nutranelle roundup skips the marketing language and gives you a data-backed guide to five of the best protein powders that are genuinely free of artificial sweeteners, ranked by how well they serve different goals.

Quick Comparison

If you’re in a hurry, the table below gives you the quick summary.

That said, “no artificial sweeteners” is not a binary. Erythritol, stevia, and nothing at all are three meaningfully different options, so read the full guide to recognize which one suits you best based on your goals and health priorities.

Prices are official DTC site prices as of 10 May 2026. Refresh at purchase.

What "No Artificial Sweeteners" Actually Means on a Label

Before the product breakdown, it's worth knowing exactly what you're looking for - because the label isn't always as clear as the front-of-pack claim.

The artificial sweeteners to filter out

Under FDA regulation, the sweeteners classed as food-additive or high-intensity artificial sweeteners include:

• sucralose (often listed as Splenda)

• acesulfame potassium (Ace-K)

• aspartame

• saccharin

If any of these four appear on a protein powder label, it doesn't qualify - regardless of what the front of the pack says.

For a deeper look at how these sweeteners compare and what the research says about each, see our science-based guide to protein powder sweeteners.

Where stevia fits as a sweetener

The FDA's overview of high-intensity sweeteners has not questioned the GRAS (Generally Recognized As Safe) status of high-purity steviol glycosides - including Rebaudioside A (Reb A), the compound used in most protein powders.

This puts stevia in a separate regulatory category from artificial sweeteners, classified instead as a plant-derived high-intensity sweetener.

Most of the products in this roundup use stevia or Reb A as their sweetener.

"No artificial sweeteners" does not mean "unsweetened" - it means the sweetening is done without synthetic food-additive compounds.

The erythritol question

One product in this roundup (Garden of Life) uses erythritol alongside stevia.

Erythritol is a sugar alcohol, not an artificial sweetener - it occurs naturally in fruits like grapes and watermelon and is produced commercially via fermentation.

On digestion, it has a genuinely better tolerance profile than most sugar alcohols, because around 90% is absorbed in the small intestine and excreted unchanged rather than fermenting in the colon. For most people, the amounts in a single serving won't cause discomfort.

That said, a 2023 study published in Nature Medicine found an association between elevated blood levels of erythritol and increased risk of cardiovascular events, including heart attack and stroke.

The research is observational - it doesn't establish that dietary erythritol causes cardiovascular harm - but it's enough to make the question live.

If you're specifically trying to avoid erythritol in addition to artificial sweeteners, that's worth noting when you get to the Garden of Life entry.

What "natural flavors" means

Every product in this roundup except NOW lists natural flavors on the ingredient panel. Under FDA regulation 21 CFR 101.22, natural flavors are derived from plant or animal sources - not from synthetic, mineral, or petrochemical ingredients.

They are not artificial sweeteners.

The FDA requires that their primary function in food be flavoring rather than nutritional.

They don't tell you exactly which plant or animal source was used, which is why some label-conscious buyers find the term vague - but they are definitionally distinct from artificial flavoring.

How the 5 Artificial-Sweetener-Free Protein Powders Stack Up

1. Nutranelle Plant-Based Protein Powder - Vanilla

A women-focused plant protein blend with a functional nutrition layer built into every serving - not just protein, but digestive support, greens, and antioxidants in a single scoop.

Sweetener profile

Stevia Leaf Extract. No erythritol, no sugar alcohols, no artificial sweeteners of any kind.

What's in the scoop

The four-protein blend - fava bean, mung bean, pea, and rice - is the meaningful formulation choice here. 

Fava and pea are legumes, limited in sulfur amino acids; rice is a grain, limited in lysine. They complement each other directly, so the blend produces a more complete amino acid profile than any single plant source would. 

Beyond the protein, each serving includes a digestive enzyme blend, a greens and alkalizing blend, a berry antioxidant blend, and hyaluronic acid - functional extras that most protein powders don't include at all, let alone in a single scoop. 

The gum blend (acacia, guar, xanthan) handles texture.

2. Orgain Organic Protein Plant-Based Powder - Vanilla Bean

One of the most widely recognised clean plant proteins on the market, positioned around accessibility and everyday use. Available at major retailers, not just DTC.

Sweetener profile

Organic Reb A (Stevia Extract). The current 2.03 lb canister uses Reb A only - no erythritol. Note: older indexed images of this product's official page show an erythritol-containing formula. If you have an older canister, check your label.

What's in the scoop

The protein sources are solid - pea, brown rice, mung bean, and chia seed cover similar complementarity ground to Nutranelle's blend, though without fava bean's lysine contribution.

The ingredient worth scrutinising is the Orgain Creamer Base™: sunflower oil, rice dextrin, and sunflower lecithin are texture and mouthfeel agents, not nutrition.

They make the powder taste creamier than a leaner formula would, which is why Orgain scores well on taste reviews - but they're also why the ingredient list is longer than it needs to be if your only goal is clean protein.

The agave inulin fiber is a genuine functional addition for gut support. Current formula uses Reb A only - no erythritol - but check your canister if it's not a recent purchase.

3. Garden of Life Raw Organic Protein Powder - Vanilla

A raw plant protein with one of the most complex ingredient decks in the category. Aimed at the buyer for whom third-party verification is the primary decision criterion.

Sweetener profile

Organic Erythritol + Organic Stevia Leaf Extract. This is the only product in this roundup that uses erythritol. See the erythritol note in the label-literacy section above if that matters to your decision.

What's in the scoop

The protein blend is the most complex in this roundup - 15 sprouted plants and seeds versus two to four sources in the others.

Sprouting is said to improve digestibility and reduce antinutrients, though the practical magnitude of that effect at the amounts in a single serving is modest.

The more consequential ingredient is erythritol, which sits in the flavor blend alongside stevia. Garden of Life is the only product here that uses both. 

The Raw Probiotic & Enzyme Blend is genuinely substantial -15 enzymes plus 250 million CFU of Bacillus subtilis DE111® - and for buyers who want digestive support built into their protein, this is the most comprehensive option in the roundup.

Contains sesame - worth noting if that's a sensitivity.

If digestive sensitivity is a concern for you, it's worth reading our breakdown of how protein powder ingredients can cause gas, bloating, and digestive upset before deciding.

4. Transparent Labs Vegan Protein - French Vanilla

A fitness-community-positioned plant protein with a notably lean ingredient deck and the highest protein-per-scoop of the plant options in this roundup. Aimed at the serious training buyer who wants clean ingredients without the functional extras.

Sweetener profile

Organic Stevia Extract. No erythritol, no sugar alcohols, no artificial sweeteners.

What's in the scoop

Five ingredients total. No creamer base, no texture oils, no proprietary blends beyond the protein itself.

The trade-off is that a leaner formula puts more pressure on the protein source to perform on its own - pea isolate is a high-quality plant protein, but it's limited in methionine and cysteine without a grain protein to complement it.

If amino acid completeness matters to you, this is the weakest of the plant options on that specific dimension.

If a minimal ingredient deck is the priority and you're hitting your total daily protein target from varied food sources, that gap is unlikely to matter in practice.

Transparent Labs' on-site reviews include verified purchasers switching from whey who specifically note the product is easy on the stomach - with several citing digestive comfort as the reason they'll continue ordering.

5. NOW Organic Whey Protein - Unflavored

The purist option. One ingredient. No sweetener of any kind. A whey concentrate for buyers who want maximum control over what goes in their body and don't mind doing the flavor work themselves.

Sweetener profile

None. This product contains no sweetener - natural, artificial, or otherwise.

What's in the scoop

Each serving is 1 level scoop (24g), delivering 19g of protein.

Whey protein concentrate scores 1.0 on the PDCAAS scale and 1.09 on the DIAAS scale - meaning it delivers all nine essential amino acids at or above the reference pattern for adults, including the sulfur amino acids that plant proteins are typically limited in.

The practical trade-off: unflavored protein typically requires more work to use palatably.

A consistent pattern across unflavored protein reviews suggests buyers value the flexibility - it mixes invisibly into smoothies, oats, and coffee - but find the powder earthy, thin, or flavor-altering if used with water alone.

Masking with banana, nut butter, cocoa, or oats is the standard approach among regular users.

How to Choose the Right One for You

The one decision that most commonly gets missed: checking whether "no artificial sweeteners" also means "no erythritol" for you.

It doesn't automatically - Garden of Life uses both erythritol and stevia, and some buyers making this comparison care about that distinction.

If you want stevia-only among the sweetened options, Nutranelle, Orgain, and Transparent Labs all qualify. If you want no sweetener at all, NOW is the only option here.

If you’re ready to try Nutranelle's Plant-Based Protein Powder - Vanilla is sweetened with stevia leaf extract only, uses a four-source protein blend designed around amino acid complementarity, and includes digestive enzymes and functional greens in every serving. 

Try Nutranelle Plant-Based Protein

Protein Powder Sweetener FAQs

Is stevia actually safe, or is it still considered artificial?

Stevia is not classified as an artificial sweetener under FDA regulation. 

High-purity steviol glycosides - including Reb A, the form used in most protein powders - have GRAS status with the FDA, placing them in a separate category from synthetic food-additive sweeteners like sucralose or Ace-K. The FDA specifically distinguishes high-purity steviol glycosides from crude stevia leaf extracts, which are not GRAS-approved for use as sweeteners.

In practical terms: stevia is plant-derived, and its use in food is federally recognized as safe.

What's the difference between stevia and erythritol - which is cleaner?

Stevia and erythritol are different types of ingredients. Stevia is a plant-derived sweetener extracted from the Stevia rebaudiana leaf. Erythritol is a sugar alcohol - it occurs naturally in some fruits and is produced commercially through fermentation of glucose.

Both are free of the four artificial sweeteners (sucralose, Ace-K, aspartame, saccharin).

The key differences are taste profile, digestive behavior, and an emerging research question. Erythritol generally has better digestive tolerance than most sugar alcohols because most of it is absorbed in the small intestine rather than fermenting in the colon.

But a 2023 observational study linking erythritol to cardiovascular event risk found elevated blood erythritol was associated with increased risk of heart attack and stroke - research that's correlational rather than causal, but worth knowing.

If you want to avoid all sugar alcohols and sweeteners with open research questions, stevia-only products are the more conservative choice.

Does "natural flavors" on the ingredient list mean there are hidden artificial sweeteners?

No. Under FDA regulation 21 CFR 101.22 defining natural flavors, natural flavors are derived from plant or animal sources - they cannot contain synthetic, mineral, or petrochemical ingredients.

They are definitionally not artificial sweeteners.

The term is broad in that it doesn't require manufacturers to specify the exact source, which is why it makes some label-conscious buyers uneasy - but it does not mean the product contains artificial sweeteners or artificial flavoring.

What's the easiest way to use unflavored protein powder without it tasting bad?

The buyers who use it most successfully treat it as an ingredient rather than a drink. Adding it to a smoothie with banana and nut butter masks the earthy taste completely.

Blending it into oats or Greek yogurt works well because the texture of those foods absorbs the protein invisibly.

Hot coffee is another popular approach - NOW's whey dissolves cleanly in warm liquid. What doesn't work well is mixing it with water alone, where the lack of fat, fiber, or flavor has nothing to work against.