Written by Dr. Ilma Imtiaz

Quick Answer: Choosing a sugar alternative is not always straightforward. These sweeteners do different jobs: some provide bulk and browning, while others deliver intense sweetness in very small amounts. If your goal is to replace sugar in a way that keeps taste and texture close to the original, allulose is one of the strongest options.

What is allulose?

Allulose (also known as D-psicose) is a rare sugar found in small amounts in foods such as figs and raisins. It stands out in formulation because it behaves more like sugar than many other low-calorie sweeteners. It offers a sugar-like taste, contributes bulk, and supports browning and caramelization in ways that high-potency sweeteners cannot.

Clinical research suggests that allulose may help reduce post-meal glucose rises in healthy adults without diabetes, and in some settings it may also attenuate insulin responses, particularly when co-ingested with carbohydrates (1,2).

Alternative sweeteners at a glance

Note: GI refers to glycemic index, which is a measure of how much a carbohydrate-containing food raises blood glucose compared to a reference, on a 0–100 scale (low: <55, medium: 55–70, high: >70). For most sweeteners listed here, GI is very low or near zero because they contribute little to no glycemic carbohydrate.

Allulose vs. erythritol

Erythritol is a polyol commonly used as a sugar alcohol sweetener. Like allulose, it contributes very few calories and generally does not meaningfully raise blood glucose in typical use. The main difference is sensory: erythritol often creates a cooling effect, especially in cold or room-temperature foods, while allulose tends to taste more sugar-like and feel more natural in the mouth.

That difference matters in practice. Erythritol can work well in low-calorie blends, but it does not brown or caramelize like sugar. Allulose is often a better fit for cookies, cakes, sauces, and frozen desserts because it supports more sugar-like browning and flavor development. Because allulose browns relatively quickly, it caramelizes around 110°C (230°F), you may need to use a slightly lower oven temperature or reduce baking time compared with regular sugar to avoid over-browning..

Allulose vs. stevia and monk fruit

Stevia comes from the leaves of the Stevia rebaudiana plant, while monk fruit is derived from the Siraitia grosvenorii fruit. Both are much sweeter than sugar and are used in very small amounts, making them quite different from allulose. The main difference is that allulose provides bulk, texture, and browning properties that are useful in baking, whereas stevia and monk fruit primarily contribute sweetness. Flavor can also vary. Stevia may leave a bitter or licorice-like aftertaste, while monk fruit is generally milder but can have a slight fruity note. Allulose has a more neutral, sugar-like taste, which is why it is often paired with monk fruit in commercial products to provide both sweetness and a more sugar-like texture.

Allulose vs. sucralose

Sucralose is a synthetic high-potency sweetener made from sucrose (table sugar) through a chemical process that replaces three hydroxyl groups with chlorine atoms. It is commonly used to sweeten beverages and shelf-stable products because it provides intense sweetness in very small amounts. However, unlike sugar, sucralose does not contribute meaningful bulk and does not provide the browning or caramelization that many baked recipes rely on.

Which sweetener works best?

There is no single best sweetener for every person or use case. However, if the goal is to replace sugar while maintaining taste, texture, and baking performance, allulose is one of the most versatile options. It comes closer to sugar than many alternatives, particularly when browning, moisture retention, and mouthfeel are important.

Erythritol remains a useful low-calorie option, especially in sweetener blends and beverages. Stevia and monk fruit are best suited to applications where intense sweetness is needed with little to no bulk. Sucralose is also commonly used in beverages and shelf-stable products where sweetness, rather than sugar-like functionality, is the primary goal.

FAQs

Which is better: allulose or erythritol?

It depends on how you plan to use them. For baking, taste, and browning, allulose is often preferred because it behaves more like sugar. Erythritol can work well in beverages and sweetener blends, particularly when its cooling effect is not noticeable.

Can allulose be blended with monk fruit?

Yes. This is a common combination because monk fruit provides sweetness intensity while allulose contributes bulk, texture, and a more sugar-like eating experience.

Does allulose bake better than stevia?

For most baking applications, yes. Stevia provides sweetness but does not contribute bulk or browning, whereas allulose can help create a more sugar-like texture and appearance.

Which sweetener tastes most like sugar?

Among the sweeteners discussed in this blog (allulose, erythritol, stevia, monk fruit, and sucralose), allulose is generally considered one of the closest to sugar in both taste and functionality.

References

1. Iida T, Kishimoto Y, Yoshikawa Y, et al. Acute D-psicose administration decreases the glycemic responses to an oral maltodextrin tolerance test in normal adults. J Nutr Sci Vitaminol (Tokyo). 2008;54(6):511-514. doi:10.3177/jnsv.54.511

2. Franchi F, Yaranov DM, Rollini F, et al. Effects of D-allulose on glucose tolerance and insulin response to a standard oral sucrose load: results of a prospective, randomized, crossover study. BMJ Open Diabetes Res Care. 2021;9(1):e001939. doi:10.1136/bmjdrc-2020-001939