Is erythritol bad for you? Why it's an unreliable swap for sugar

Is erythritol bad for you? Nobody can say for sure yet, and that's what makes it an unreliable swap for sugar. Since 2023, three studies from two labs have tied erythritol to clotting and blood vessel changes, EFSA has capped daily intake, and the FDA still calls it safe. That's a lot of open questions for an everyday ingredient.

You cut sugar because you read labels and wanted more control over what you eat. That was the right call. But a lot of monk fruit blends on Indian shelves are mostly erythritol by weight, so for many people the switch landed on an ingredient that still doesn't have a settled answer.

So is erythritol bad for you, practically speaking? It's unproven either way, and that's exactly the problem, because the research moved after most people made their switch, and it keeps moving in the same direction. That's why we left erythritol out of ours and used allulose.

Did switching from sugar to erythritol swap one problem for another?

For a lot of people, switching from sugar to erythritol traded a known problem for an unreliable one. Erythritol is unproven either way, but three studies in three years have pointed the same worrying direction, the two biggest food regulators disagree about it, and one large dose stays in your blood for days. That's shaky ground for something you'll eat daily.

Whatever replaces sugar inherits sugar's place in your day: every cup of chai, every dessert, for years. So the question to ask of a sugar replacement is whether you can rely on it, and erythritol gives you four reasons to hesitate.

• The research keeps moving, and in one direction. A heart-risk link in 2023, a platelet trial in healthy people in 2024, a brain blood vessel study in 2025. Each one is limited on its own. Each one pointed the same way.
• The regulators don't agree. The FDA's 2023 memo calls erythritol safe, and it was written before the 2024 and 2025 studies. EFSA set a daily ceiling the same year and found Europeans already eating more than it.
• It lingers. After a single 30 g drink, blood erythritol stayed high enough to change platelet behaviour for more than two days. If you eat several erythritol-sweetened products a day, your blood doesn't get much of a break.
• Its daily limit is a gut limit, and most people are over it. EFSA capped erythritol to prevent diarrhoea and its longer-term knock-on effects, and nobody has studied years of daily use.

And the one thing erythritol does well, staying out of your blood glucose, allulose does too, and it goes further by lowering the rise from the rest of the meal. That's covered further down.

Our read, and it's a sweetener company's read, so weigh it accordingly: frequency is what to manage. One erythritol-sweetened dessert last week is a very different exposure from 3 or 4 spoons a day for years. If you've had blood clots, a stroke or heart disease, this is a fair question to put to your doctor.

And if you're managing diabetes, erythritol's clean blood glucose record still counts in its favour. We've laid out how each sugar substitute sold in India compares for diabetics, including the ones we don't sell.

What is erythritol, and why is it in so many monk fruit sweeteners?

Erythritol is a sugar alcohol made commercially by fermenting corn sugars, and it's the bulking agent in a lot of monk fruit sweeteners. Monk fruit extract is intensely sweet, so a spoon-for-spoon pack has to be mostly something else by weight. Erythritol is cheap, close to calorie-free and doesn't raise blood glucose, which is why brands reach for it.

That last point is real, and it's the honest reason erythritol got popular. In a 2016 study in the American Journal of Physiology, Wölnerhanssen and colleagues gave 20 volunteers 75 g of erythritol and saw no effect on blood glucose or insulin.

Erythritol also turns up in nature, in pears, grapes, melon, cheese and soy sauce. That's where the "natural" on a lot of packs comes from. Mayo Clinic points out that food companies use it at 1,000 times those levels or more.

So when a headline says monk fruit sweetener might be bad for your heart, read the ingredients list first. The research below is about erythritol. Monk fruit isn't part of it.

Is erythritol bad for your heart?

Erythritol has been linked to heart attack and stroke in one large observational study, and that link hasn't been proven to be cause and effect. Witkowski and colleagues, in Nature Medicine in 2023, found people with the highest blood erythritol had 1.8 to 2.2 times the three-year rate of heart attack, stroke or death of those with the lowest.

The team started with about 1,150 Americans already being evaluated for heart disease, then checked the pattern in roughly 3,000 more across US and European groups. The link held in both.

And the paper didn't stop at the numbers. When the researchers added erythritol to human blood, platelets clumped more readily. In mice, it sped up clot formation in arteries.

Then 8 healthy volunteers drank 30 g of erythritol. Their blood levels rose about 1,000-fold and stayed above the level that changed platelet behaviour for more than two days. That's what turns "linked to" into something you can picture: a mechanism, and a dose that hangs around.

You can read the full paper, "The artificial sweetener erythritol and cardiovascular event risk", on the Nature Medicine site.

What happened when healthy people drank erythritol?

In a 2024 trial in Arteriosclerosis, Thrombosis and Vascular Biology, 20 healthy adults were split into two groups of 10. One group drank 30 g of erythritol in water, the other 30 g of glucose. Thirty minutes later, platelet clotting responses had risen in every person who drank erythritol. In the glucose group, nothing changed.

Blood erythritol went up more than 1,000-fold in that half hour. The same Cleveland Clinic team ran this trial, and it answers one of the fair objections to their 2023 paper. These were healthy people, given a measured dose, with a sugar control beside them.

Cleveland Clinic describes 30 g as the amount you'd typically find in a sugar-free soft drink or muffin. So this is a dose from ordinary products, and nobody had to eat anything strange to get there.

What the trial can't tell you is whether a stickier platelet at 30 minutes becomes a heart attack over 10 years. Ten people per group is small, and the study looked at one dose on one morning. The paper is Witkowski et al., 2024.

What does the brain blood vessel study add?

A 2025 study from the University of Colorado Boulder, in the Journal of Applied Physiology, exposed human brain blood vessel cells to erythritol for three hours, at about the level one sugar-free drink puts in your blood. The cells made less nitric oxide, more endothelin-1, more free radicals, and less of the protein that breaks down clots.

Nitric oxide relaxes blood vessels. Endothelin-1 tightens them.

The clot-breaking protein, t-PA, is what your body uses to clear a clot before it blocks something. Every one of those moved in the wrong direction.

But it's a dish of cells. A letter published in the same journal later cautioned against reading too much into in-vitro findings, and the authors themselves say larger studies in people are needed.

So treat Berry et al., 2025 as the direction the evidence is pointing. It's a third study in three years pointing the same way, from a different lab, which counts for something. It isn't proof of anything in a human brain.

What's the case that erythritol is safe?

The FDA reviewed the 2023 Nature Medicine paper in a memo dated 15 June 2023 and concluded erythritol has been consistently shown to be safe across three decades of toxicology studies. The agency hasn't questioned erythritol's GRAS status. Its main objection is that the paper showed an association and couldn't show cause.

The memo lists four specific weaknesses. The people studied were already at much higher heart risk than the general public, and nobody recorded what they ate, so nobody knows how much erythritol came from food.

Kidney function, which controls how fast erythritol leaves the body, wasn't adjusted for. And the European group had no BMI data.

The food question matters more than it sounds, because your body makes erythritol itself. A 2017 study in PNAS by Hootman and colleagues traced it to the pentose phosphate pathway, one of the routes cells use to process glucose, and found higher blood erythritol in young adults who went on to gain fat. A high blood level may partly reflect how someone's body handles sugar.

Both sides are reading the data honestly.

The 2024 trial answers some of the FDA's 2023 memo, because it gave a known dose to healthy people. It doesn't settle what happens over years. Nobody knows that yet.

So you're left weighing a 2023 regulator memo against two newer studies it never saw. For an ingredient you use every day, that gap is the reliability problem in one sentence.

How much erythritol is safe per day?

EFSA, the European food safety regulator, set an acceptable daily intake for erythritol of 0.5 g per kg of body weight on 20 December 2023. That's 30 g a day for a 60 kg adult. EFSA also found that in every population group it assessed, both single-day and long-term exposure already ran above that limit.

The limit is built on the gut. EFSA based it on the dose at which people in human studies stopped getting diarrhoea, and it kept the warning that eating too much may have a laxative effect. The EFSA summary is short and worth reading.

Here's the part that cuts in erythritol's favour.

Among sugar alcohols it's the gentlest on your stomach, because most of it is absorbed in the small intestine and leaves in urine. Livesey, in the British Journal of Nutrition in 2001, put its laxative threshold above 0.66 g per kg in a single meal, higher than sorbitol, maltitol or isomalt. So one sitting is rarely the issue; the daily total is, and that's where EFSA drew its line.

Where 30 g adds up is the "keto" aisle. A teaspoon in your chai won't get you close. Two or three sugar-free products in one day can, and that's the same 30 g the platelet trial used.

Can erythritol cause gut problems over time?

Erythritol's gut risk comes from the daily habit. EFSA set its daily limit of 0.5 g per kg to prevent diarrhoea and the longer-term problems that can follow it, such as electrolyte imbalance, and found people in every group it assessed already eating more than that. Nobody has tested years of daily use in people.

Here's how it works. Most erythritol is absorbed in the small intestine and leaves in urine. What isn't absorbed pulls water into the gut, and the more you eat across a day, the more of it gets there.

A spoon in your chai is far below the limit. The trouble is stacking: sweetener in two cups, a keto biscuit, a sugar-free ice cream, a diet drink. EFSA's finding is that real diets already do this.

And the long view is a blank. A 2025 review in Cardiovascular Research by Wölnerhanssen and colleagues concluded that long-term controlled human trials on erythritol are still needed. So if you've used it every day for years, nobody can tell you what that's done to your gut.

One thing the research doesn't show is erythritol harming your gut bacteria. The same review found it likely has no effect on the microbiome, because very little reaches the colon and bacteria there don't ferment it. The concern is volume over time, with no long-term data behind it.

Why does erythritol taste cold and refuse to brown?

Erythritol absorbs heat as it dissolves, about 180 joules per gram, which your tongue reads as a cooling, minty finish. It also doesn't caramelise, so it won't brown a biscuit or deepen the colour of a halwa, and it comes back out of a cooled syrup as crystals. Those are kitchen problems, and they're measurable ones.

The syrup problem is solubility. Roughly 47 g of erythritol dissolves in 100 g of water at room temperature, against about 200 g of sugar. So a heavy syrup made with it goes cloudy and gritty as it cools.

You'll see it in a gulab jamun chaashni the next day, in kheer from the fridge, and at the bottom of a glass of cold nimbu pani. The cooling note is the other giveaway, and it's hardest to hide in hot chai, where you'd expect the opposite.

None of this is a health issue. It is the reason a lot of people try an erythritol blend once and go back to sugar. If you cook Indian sweets, it's worth reading allulose in baking and Indian sweets, and why it browns before you swap anything.

How do you spot erythritol on an Indian label?

Erythritol appears on Indian ingredients lists as erythritol or by its additive number, INS 968. In a monk fruit pack that claims to replace sugar spoon for spoon, erythritol listed anywhere is almost certainly most of the pack by weight, because monk fruit extract is too sweet to be the bulk of anything measured by the spoon.

Two more tells. FSSAI's Labelling and Display Regulations, 2020 require packs with 10% or more polyols to carry the line "Polyols may have laxative effect". On a sweetener pouch, that line means a sugar alcohol is in there, and erythritol is the usual one.

Then look further down the list for maltodextrin or dextrose. Both are glucose in another form, and they're there because they make a pack cheaper to fill.

None of this is hidden. It's printed on the back of every pack, ours included, and it takes about ten seconds to check.

Is allulose better than erythritol?

For a sweetener you use every day, allulose is the stronger choice on the evidence. It's the only one of the two with human trials showing it lowers the post-meal glucose rise. No published study has linked it to clotting. And in the kitchen it browns, stays dissolved in syrups and has no cooling finish, which erythritol can't match.

The glucose row is the headline, and it gets its own section below. The clotting row needs a straight explanation.

On clotting, here's exactly what we can say. No published study has linked allulose to heart events or platelet changes, and nobody has run the Cleveland Clinic's platelet test on it either. An empty column of evidence is weaker than a clean result, and we'd rather you knew that.

Two things go to erythritol, and they belong in the table. It's cheaper, and in a single sitting it's the gentlest sugar alcohol on the gut (Livesey, 2001). And the EU hasn't authorised allulose, though EFSA's June 2025 opinion says that's because the applicant stopped sending the data it asked for, with no harm found.

Does allulose do more for blood glucose than erythritol?

Allulose lowers the post-meal glucose rise, and erythritol leaves it unchanged. Tani and colleagues, in PLOS ONE in 2023, pooled 8 experiments and found 5 g and 10 g of allulose cut the post-meal glucose curve by roughly 13 to 14% in healthy adults. Erythritol, even at 75 g, didn't move glucose at all (Wölnerhanssen, 2016).

That review left out people with diabetes. So Ayesh and colleagues, in Metabolism Open in 2024, pooled 6 trials and 126 people with type 2 diabetes, and found a smaller rise after meals with no change in fasting glucose.

Allulose adds almost nothing of its own to that curve. Daniel and colleagues, reviewing the research in the British Journal of Nutrition in 2022, note that humans have no enzymes that can break allulose down, and roughly 50 to 70% is absorbed in the small intestine and leaves the body intact.

Exactly how it pulls down the glucose from the rest of the meal is still being worked out. The effect is measured; the full mechanism isn't settled yet.

How does allulose compare with erythritol in Indian cooking?

Allulose behaves like sugar in the places erythritol fails: it caramelises, so halwa and biscuits take colour, it stays dissolved, so chaashni and kheer stay smooth in the fridge, and it has no cooling note in hot chai. Where allulose falls short is anything that sets on sugar crystals, like barfi and kaju katli.

The browning is measurable. Ertugrul and colleagues, in the International Journal of Food Science and Technology in 2021, heated allulose, fructose and glucose under identical conditions, and allulose browned the most. So bake a little cooler than a sugar recipe says and watch the edges.

It keeps baked things softer too. Sawettanun and Ogawa, in the same journal in 2022, found allulose bread firmed up by 75% over 3 days against 100% for sugar bread.

The same paper has the catch, and it's worth knowing before you bake a loaf. Yeast left 83% of the allulose untouched, so a yeast dough still needs a spoon of sugar to rise properly.

And barfi won't set firm, because a sugar barfi sets as sucrose crystallises and allulose doesn't crystallise. Erythritol fails the other way: it crystallises, but gritty, in exactly the syrups where you want smooth.

Where do you find allulose instead of erythritol?

Plenty of Indian monk fruit sweeteners now use allulose as the bulk ingredient in place of erythritol, ours included, so a pack without erythritol is easy to find. Read the ingredients list for allulose and check nothing else is doing the bulking. Expect to pay more, because allulose costs more to make and that shows on the price.

The price gap is real. One Indian brand sells the same monk fruit powder with erythritol and with allulose, and the allulose version costs 78% more for the same 400 g. That's somebody else's price list, and it's the honest explanation for ours.

Our Super Sweetener is monk fruit and allulose, with no erythritol and no maltodextrin. If you want the full picture first, read about allulose, the rare sugar we use instead.

A small number of customers find it a touch less sweet than they expected, so start with your usual amount and adjust.

Frequently asked questions

Is erythritol a safe replacement for sugar?

Erythritol is an unreliable replacement for sugar. It doesn't raise blood glucose, but since 2023 it has been linked to heart events and shown to make platelets clot more readily, and EFSA has capped how much you should eat a day, while the FDA still calls it safe. For an everyday ingredient, those open questions are the problem.

Is allulose better than erythritol?

For everyday use, allulose has the stronger evidence. It has human trials showing it lowers the post-meal glucose rise, which erythritol doesn't, no published clotting signal, and it browns and stays dissolved like sugar. Erythritol is gentler on the gut and cheaper, and allulose isn't authorised in the EU yet.

Is monk fruit with erythritol safe?

The recent heart research is about erythritol, and monk fruit plays no part in it. A monk fruit and erythritol blend carries whatever risk erythritol does, and in a spoon-for-spoon pack erythritol is most of what you're eating. The FDA considers it safe, EFSA has set a daily limit, and the clotting question is still open.

How much erythritol is too much?

EFSA's acceptable daily intake for erythritol is 0.5 g per kg of body weight, about 30 g a day for a 60 kg adult. The 2024 platelet trial used 30 g in a single drink. Your gut can usually take more than that, since erythritol is the best-tolerated sugar alcohol, but the heart question is why the number matters.

Does erythritol raise blood sugar?

Erythritol doesn't raise blood sugar: in a 2016 study in the American Journal of Physiology, 20 volunteers given 75 g of erythritol showed no effect on blood glucose or insulin. That's the real reason it became popular with people managing diabetes. The open questions about erythritol are about platelets and blood vessels.

Can erythritol cause gut problems over time?

Erythritol can cause gut problems when daily intake runs high. Whatever isn't absorbed draws water into the gut, and EFSA set its daily limit to prevent diarrhoea and longer-term effects such as electrolyte imbalance. EFSA found typical intake already above that limit, and no long-term human trials have tested years of daily use.

Is erythritol natural?

Erythritol occurs naturally in small amounts in pears, grapes, melon, cheese and soy sauce, and your body makes some from glucose. The erythritol in a sweetener pack is made by fermenting corn sugars. Mayo Clinic notes that food additive use puts it in food at 1,000 times natural levels or more.

Is there erythritol in our sweetener?

Beyond The Sugar's Super Sweetener contains no erythritol. It's monk fruit and allulose, with no maltodextrin and no preservatives. The ingredients list on the back of every pack says so, and you should check ours the same way you'd check anyone else's.

You already did the hard part when you cut sugar. Now turn over the pack you switched to and read the ingredients list. If erythritol is on it and you use it every day, try the 150 g pouch of our monk fruit and allulose sweetener in your chai for a week, and judge it yourself.