Some links on our site may earn us a commission at no extra cost to you. Learn more.
This article is general information, not medical or dietary advice. If you manage diabetes, a digestive condition, or any diagnosis where sweeteners matter, bring the specifics to your doctor or a registered dietitian.
Updated August 2026: every price re-verified against each maker’s own current listing, the FDA’s allulose labeling rule re-checked, and the 2023 Cleveland Clinic cardiovascular study on erythritol folded into the record — the sweetener in your cabinet may not be what the bag implies.
$4.70 buys the same sweetness as a cup of sugar if you’re buying a monk-fruit-and-allulose blend. The same sweetness in pure allulose costs $19.92 — 4.2 times more. That gap is the real story here, not the marketing on any one bag.
Four names crowd the sugar-substitute shelf: stevia, monk fruit, erythritol, and allulose. Only one of them behaves anything like sugar when it hits heat. Only one has a federal labeling exception written just for it. And the one most people think they’re buying pure usually isn’t. Here’s what’s actually in the bag, what it costs, and one health finding worth knowing before you restock. More of this skepticism applied to the rest of the wellness aisle lives in our greens powder claims check and our electrolyte powder sweat math.
There’s a Blend Hiding Inside Most “Erythritol” Bags Now
Swerve Granular is the sweetener most people picture when they hear “erythritol.” Check its own current label and it isn’t pure erythritol at all — it’s an erythritol-and-allulose blend, measured 1:1 with sugar. Lakanto Classic runs the same play from the other direction: its ingredient list is monk fruit extract plus erythritol, with erythritol doing the actual bulking. Neither bag is dishonest about it. Both list every ingredient. But “erythritol sweetener” and “monk fruit sweetener” on the front of a package now routinely mean a blend, not the pure extract the name implies.
That matters for two reasons covered below: it’s why the price math has to use real blend ratios instead of a single ingredient’s price, and it’s why an erythritol health question doesn’t stop at products with “erythritol” nowhere in the name.
There’s a $15.22 Gap Between a Blend and Pure Allulose
Sticker price misleads here because none of these sweeten at the same strength per gram. So the comparison below computes the price of sugar-equivalent sweetness — what you’d pay for the sweetening power of one cup (200 grams) of sugar — using each maker’s own current listing, checked this week.
| Package and price | Sweetness basis | Cost per sugar-equivalent cup | |
|---|---|---|---|
| Swerve Granular (erythritol + allulose) | 12 oz, $7.99 (maker’s site) | 1:1 with sugar | $4.70 |
| Lakanto Classic (monk fruit + erythritol) | 1 lb, $14.59 (maker’s site) | 1:1 with sugar | $6.43 |
| Wholesome Allulose (pure) | 12 oz, $23.72 (Walmart listing) | ~70% as sweet — needs 1.43× more by weight | $19.92 |
Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.
The arithmetic on pure allulose: it’s about 70% as sweet as table sugar, per the International Food Information Council, so matching a 200-gram cup of sugar takes roughly 286 grams of allulose. At $23.72 for 340 grams, that’s $19.92 — 4.2 times Swerve’s blend and just over 3 times Lakanto’s. Blending a high-intensity sweetener with a bulking agent doesn’t just make measuring easier. It roughly quarters the price of the sweetness itself.
Buy the blend if price is any part of the decision — it almost always should be. Buy pure allulose if the baking behavior below is worth 4.2 times the price to you, which for some recipes it genuinely is.
There’s One Sweetness Rule the FDA Actually Blessed
Allulose has a regulatory carve-out none of the other three gets. In April 2019 the FDA clarified that allulose can be counted toward Total Carbohydrate without being declared in Total Sugars or Added Sugars, and in October 2020 the agency finalized a caloric value of 0.4 calories per gram for it — a tenth of ordinary sugar’s four. The reasoning: the body doesn’t metabolize allulose the way it does sucrose, so it doesn’t raise blood glucose the same way either. That’s why a product sweetened with allulose can legally print “0g added sugar” on the front while still pouring, browning, and measuring like the real thing. Stevia, monk fruit extract, and erythritol don’t carry that specific label exception — they just happen to contain few or no calories on their own.
There’s a 2023 Study Worth Knowing About Before You Stock Up on Erythritol
A Cleveland Clinic team led by Dr. Stanley Hazen, publishing in Nature Medicine in February 2023, followed roughly 3,000 people across the U.S. and Europe and found that people in the highest quarter of blood erythritol levels were about twice as likely to have a cardiovascular event — heart attack, stroke, or death — as people in the lowest quarter. In lab and animal testing, the same team found erythritol made platelets more likely to clot, and healthy volunteers who drank an erythritol-sweetened beverage saw their blood levels spike roughly 1,000-fold, staying elevated for days. The NIH’s own research summary covers the study in detail.
This is an association found in observational data plus lab mechanism work, not a randomized trial proving erythritol causes heart attacks in anyone who eats it — and this page isn’t the place to resolve that. What it does mean practically: because erythritol shows up as the bulking agent in most monk-fruit and “keto” sweetener blends, checking a bag for “erythritol-free” takes more than avoiding products with erythritol in the name. Anyone with existing cardiovascular risk factors has a real reason to raise this with a doctor before making erythritol blends a daily habit, rather than assuming zero-calorie means zero-consequence.
There’s No Fair Cup-for-Cup Price on Stevia or Monk Fruit Alone
Pure stevia and pure monk fruit extract are 100 to 400 times sweeter than sugar, depending on the extract, which is why they’re sold as drops or tiny jars rather than bags. A small bottle sweetens months of coffee. Forcing that into a “price per sugar-equivalent cup” number would mean multiplying a few drops out to a full cup’s worth of sweetness — a real number, but not one that tells you anything useful about how the product is actually bought or used, so it’s left out of the table above rather than published as false precision.
SweetLeaf’s SteviaClear liquid drops list for $17.99 for 4 fluid ounces on the maker’s own site — and as of this check, that product page shows it sold out directly from SweetLeaf, with only a restock notification available. Pure stevia also carries a real taste tradeoff: it can leave a bitter edge, brand-dependent, that takes some buyers a few tries to stop noticing. Monk fruit extract alone is milder but is rarely sold pure at all — check the first ingredient on the label, because you’re very likely buying a blend, and the blend’s bulking agent decides how it bakes and what health considerations apply.
Buy a pure extract if you’re sweetening drinks and want the lowest cost per use by a wide margin. Skip it if you’re baking anything that needs bulk, browning, or moisture — a few drops can’t replace a cup of sugar structurally, no matter how sweet they taste.
There’s a Reason Allulose Costs More at the Register
Chemically, allulose is the closest thing on this page to sugar itself — a “rare sugar” that browns, caramelizes, and holds moisture in a way erythritol and stevia blends don’t. Erythritol-heavy blends can crystallize into a gritty texture and dry a bake out; allulose does neither, which is the whole reason cookies and caramels built on it come out chewy instead of chalky. That baking chemistry, not marketing, is what the 4.2x price premium over Swerve is actually buying.
The honest downsides: allulose browns faster than sugar, so recipes often need the oven dropped 10 to 15 degrees to avoid over-darkening, and large servings of any sugar alcohol or rare sugar on this page — allulose included — can cause digestive upset in people who eat a lot of it at once. Start with less than a full swap the first time you use any of these four in a new recipe.
There’s a Different Winner for Baking, Price, and the Erythritol Question
On price, Swerve’s blend wins outright at $4.70 a sugar-equivalent cup — the named loser is pure allulose, 4.2 times the cost for the same sweetness. On baking chemistry, that ranking flips: pure allulose is the only one of the four that browns and holds moisture like real sugar, which is worth its price in cookies, caramel, and ice cream specifically. And on the erythritol question, there’s no clean substitute hiding in this lineup — most monk fruit and “erythritol” products on the shelf are erythritol blends by ingredient list, so avoiding it means reading past the front label, not just avoiding the word.
Pick by the job: Swerve or Lakanto for everyday coffee, tea, and baking where cost matters. Pure allulose for the specific recipes where browning and moisture actually show up in the result. Pure stevia or monk fruit drops only for drinks, never for anything that needs bulk. And read the ingredient list before assuming any bag is erythritol-free — the name on the front isn’t the whole story anymore. More in our Nutrition Basics category, including the same claims-versus-label treatment applied to protein powder types.
