Erythritol is a sugar alcohol, or polyol, used to provide sweetness and bulk with very little metabolizable energy compared with sucrose. It is not a high-intensity sweetener such as stevia or acesulfame K: its sweetness is usually around 60–80% that of table sugar, so products can use relatively large amounts.
Sucrose provides about 4 calories per gram. Erythritol contributes negligible usable energy because the body absorbs most of it but metabolizes very little before excreting it.
Commercial erythritol is usually made by fermentation
Erythritol occurs naturally in small amounts in some foods and is also produced inside the human body. Commercial food-grade erythritol is usually made by fermenting carbohydrate feedstocks with suitable microorganisms, followed by purification and crystallization.
The final ingredient looks much like white table sugar. Its chemistry and metabolism are different, however, which is why it behaves differently both in the body and in recipes.
Why the calorie contribution is so small
Most ingested erythritol is absorbed in the small intestine. It circulates largely unchanged and is then eliminated mainly in urine rather than being converted into significant usable energy.
Because relatively little reaches the colon, erythritol generally produces less fermentation than sugar alcohols such as sorbitol or maltitol. That often improves gastrointestinal tolerance at moderate doses.
Labeling conventions vary by jurisdiction. The European Union explicitly assigns erythritol 0 kcal/g for nutrition-label energy calculation, while the physiological point remains the same internationally: its available energy is tiny compared with sucrose.
It does not behave like sugar in blood glucose or baking
Erythritol has minimal acute effects on blood glucose and insulin because it is not metabolized like glucose. That makes it useful in lower-sugar and sugar-free formulations.
But sugar is more than sweetness in a recipe. Sucrose contributes browning, caramelization, moisture control, bulk, freezing-point effects, and structure. Erythritol is less sweet, has a characteristic cooling sensation when it dissolves, and does not caramelize in the same way.
Manufacturers often combine it with steviol glycosides or other high-intensity sweeteners so erythritol supplies bulk while the second sweetener supplies additional sweetness.
High doses can still cause gastrointestinal symptoms
EFSA’s 2023 re-evaluation established an Acceptable Daily Intake of 0.5 g/kg body weight per day, based mainly on protection against diarrhea and secondary consequences of repeated fluid and electrolyte loss.
For a 154-lb (70-kg) adult, that corresponds to 35 g/day. Individual tolerance varies, and consuming a large amount at once can produce more symptoms than spreading smaller amounts across the day.
Products high in added polyols may also carry laxative-effect warnings under European rules.
What do the recent cardiovascular studies actually show?
A 2023 study reported that higher circulating erythritol concentrations were associated with more major cardiovascular events in high-risk cohorts and also reported platelet and thrombosis-related findings in experimental models. A 2024 intervention study with 10 healthy adults per group found increased platelet reactivity after a single 30-g erythritol dose.
Those results deserve attention, but they do not yet prove that habitual dietary erythritol causes heart attacks or strokes. Erythritol is also produced endogenously, so high blood levels can reflect metabolic dysfunction rather than simply how much sweetener someone ate.
EFSA reviewed literature through September 2023 and specifically noted uncertainty about whether circulating erythritol in epidemiologic studies represented dietary additive exposure. The agency considered further research useful while retaining its overall re-evaluation conclusions.
WHO’s 2023 non-sugar-sweetener recommendation does not cover erythritol
WHO’s guideline recommending against using non-sugar sweeteners as a long-term weight-control strategy includes sweeteners such as stevia, saccharin, and acesulfame K. It explicitly excludes sugar alcohols, or polyols, such as erythritol.
That exclusion is not an endorsement of unlimited erythritol. It simply means polyols were outside the definition used for that specific recommendation.
Erythritol and sugar solve different formulation problems
Sugar delivers sweetness, calories, structure, browning, and bulk all at once. Erythritol provides bulk and moderate sweetness with minimal usable energy but may require other ingredients to reproduce texture or flavor.
The practical rule: erythritol is a very-low-energy sugar replacement rather than a calorie-free version of sucrose with identical behavior. It can reduce sugar and glycemic impact, but large doses can cause GI symptoms, and recent cardiovascular findings are important research signals rather than proof of causal harm from ordinary use.
Frequently asked questions
How many calories does erythritol have?
It provides negligible usable energy compared with sugar. The EU assigns it 0 kcal/g for label calculations, while sucrose provides about 4 kcal/g.
Does erythritol raise blood sugar?
Its acute glucose and insulin effects are minimal because most absorbed erythritol is excreted largely unchanged.
Does erythritol cause heart disease?
Recent observational and small mechanistic studies raise questions, but they do not yet prove that habitual dietary erythritol causes cardiovascular disease.
Sources
- EFSA — Re-evaluation of erythritol E 968 — Reevaluación de 2023: ADI de 0,5 g/kg/día, tolerancia gastrointestinal y discusión de la incertidumbre cardiovascular.
- EUR-Lex — Regulation EU 1169/2011, Annex XIV — Asigna al eritritol un factor de conversión energético de 0 kJ/g y 0 kcal/g en la UE.
- PubMed — The artificial sweetener erythritol and cardiovascular event risk — Estudio de 2023 sobre eritritol circulante, eventos cardiovasculares y mecanismos de trombosis.
- PubMed — Erythritol ingestion and platelet reactivity in healthy volunteers — Estudio de 2024 con 30 g de eritritol y medidas agudas de reactividad plaquetaria.
- WHO — Use of non-sugar sweeteners guideline — Aclara que la recomendación sobre NSS no se aplica a polialcoholes como eritritol.