Allulose, Monk Fruit, and the Ingredients Behind 'No Added Sugar'

Why Did the 'No Added Sugar' Ingredient Landscape Shift by 2026?

Two forces reshaped this space between 2023 and 2026. First, consumer pressure pushed brands away from high-intensity synthetic sweeteners like aspartame and saccharin, at least in premium segments. Second, the FDA's 2019 decision to let manufacturers exclude allulose from the added-sugar and total-sugar lines on Nutrition Facts panels finally filtered through to mass-market product development around 2022-2024, producing a visible wave of allulose-containing launches.

The result is that what ingredients appear behind a 'no added sugar' claim is no longer a short, stable list. A diligent label reader in 2026 may encounter five or six different sweetening strategies on the same shelf, sometimes blended together in a single product.

What Is Allulose and Why Is It Everywhere Now?

Allulose is a rare sugar found in tiny quantities in figs, raisins, and jackfruit. It tastes and behaves like sucrose — it browns, it dissolves, it blends — but the human body absorbs and then excretes most of it without metabolising it for energy. USDA FoodData Central lists its caloric contribution at roughly 0.4 kcal per gram, compared with 4 kcal for sucrose.

Because the FDA permits allulose to be excluded from added-sugar totals, a manufacturer can use it generously and still display '0 g added sugars' on the panel. That regulatory gap is the main commercial reason allulose has moved from specialty health stores into mainstream cereals, yogurts, sauces, and protein bars.

An ingredient checker or food ingredient scanner will show allulose clearly on the label — it is not hidden under an umbrella term — but many shoppers do not yet recognise the name. If you see it, the product is using a low-calorie bulk sweetener that the FDA considers safe and does not count as added sugar.

How Does Monk Fruit Extract Work as a Sweetener?

Monk fruit extract comes from the dried fruit of Siraitia grosvenorii, a vine grown mainly in southern China. The active compounds are mogrosides, a family of glycosides that bind to sweetness receptors on the tongue at concentrations roughly 150 to 250 times sweeter than sucrose, depending on the specific mogroside fraction used.

Because mogrosides are not carbohydrates that the body metabolises for energy, monk fruit extract contributes no calories and no sugar molecules to a food. The FDA classifies it as generally recognised as safe (GRAS), and Open Food Facts records show it appearing in an expanding range of drinks, protein powders, and flavoured waters.

One practical note: monk fruit extract has a faint fruity aftertaste that formulators sometimes mask by blending it with erythritol or allulose. If you use an ingredient analyzer and see all three names together, that combination is the brand's attempt to smooth the flavour profile.

What Ingredients Like Tagatose and Trehalose Do That Most People Miss?

Tagatose is structurally close to fructose but is digested differently — most of it reaches the large intestine without being absorbed, where gut bacteria ferment it. This produces a lower glycaemic response than sucrose and, in the EU, allows tagatose to be labelled as dietary fibre in some contexts. In the US, FDA classification remains more cautious: it counts as a carbohydrate but its caloric contribution is listed at around 1.5 kcal per gram in agency guidance rather than the standard 4 kcal.

Trehalose is a disaccharide found naturally in mushrooms and some insects. It is much less sweet than sucrose — only about 45% as sweet — and is used more for texture and moisture retention than for intense sweetness. It does raise blood glucose, which means products using it as the only sweetener may not qualify for a 'no added sugar' claim; it tends to appear alongside other sweeteners rather than as the sole solution.

Both ingredients illustrate that the 'no added sugar' claim says nothing about which specific molecules are providing sweetness or bulk. That is why looking at what ingredients are actually listed, rather than stopping at the front-of-pack claim, is the only reliable approach.

Is Erythritol Still Considered Safe After the 2023-2024 Research Wave?

Erythritol is a sugar alcohol produced by fermenting glucose, typically from corn. It provides about 0.2 kcal per gram, does not raise blood glucose measurably, and does not feed oral bacteria in the way sucrose does. It has been used in foods for decades and remains on both the FDA's GRAS list and the EU's approved food additives register as of late 2026.

Starting in 2023, several observational studies — published in cardiovascular research journals — reported associations between elevated blood erythritol levels and higher rates of adverse cardiovascular events. The important caveat is that these were association studies, not controlled trials, and erythritol levels in blood can rise for reasons unrelated to dietary intake, including endogenous production during glucose metabolism.

Regulatory bodies in the US, EU, and UK reviewed the available evidence and had not altered erythritol's approved status by the time this post was written. Whether the question 'is this ingredient safe' has a settled answer for erythritol is genuinely uncertain at a population level for people with existing cardiovascular risk. That uncertainty is worth knowing even though the legal status has not changed.

How Do Stevia Glycosides Fit In, and Which Ones Are Actually on Labels?

Stevia glycosides are extracted from the leaves of Stevia rebaudiana. The leaf itself is not approved as a food additive in the US, but purified steviol glycosides — compounds including rebaudioside A (Reb A), rebaudioside D (Reb D), rebaudioside M (Reb M), and stevioside — are on the FDA GRAS list and the EU's approved additives register.

Not all steviol glycosides taste the same. Reb A has a noticeable bitter, liquorice-like aftertaste. Reb D and Reb M are considered cleaner-tasting and have attracted investment in precision fermentation production methods, which can produce specific glycosides at scale without growing large quantities of the plant. By 2026, Reb M from fermentation has moved out of niche health products and into mainstream beverages.

On an ingredient list you may see 'stevia leaf extract', 'steviol glycosides', 'rebaudioside A', or the specific Reb M or Reb D designations. All of these refer to the same family of compounds but with different flavour and regulatory details attached.

What Should You Actually Look For When Reading a No-Added-Sugar Label?

The front-of-pack claim tells you only that no sugar — defined in a specific regulatory sense — was added during production. It does not tell you which sweetening strategy was used, how many sweeteners were blended, or whether any of them have their own evidence questions. The ingredient list is the only place that information lives.

A practical scan of a 'no added sugar' product's ingredient list should look for: the primary sweetener or sweeteners by name, any polyols such as sorbitol or maltitol that can cause digestive discomfort at high doses, and any flavour enhancers that may be compensating for the absence of sugar's full sensory role.

InZoRAH pulls the ingredient list, cross-references it against sources including USDA FoodData Central and openFDA records, and explains each ingredient in plain terms — which is useful when a label carries four different sweetener names you have not encountered before. Always read the physical label yourself if you have a known allergy or metabolic condition, because app data and product formulations can both change.

• Look for the primary sweetener name — allulose, erythritol, monk fruit extract, stevia glycosides, or tagatose.
• Check for blended sweeteners; two or three names together usually means the brand is balancing taste or mouthfeel.
• Note any sugar alcohols (sorbitol, maltitol, xylitol) — these count differently from sugar but can cause GI effects in larger amounts.
• Remember that 'no added sugar' does not mean 'no carbohydrates' — some products still carry significant starch or lactose.