# Allulose (D-Psicose) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/allulose-d-psicose **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-18 **Evidence Score:** 8 / 10 **Category:** Other **Also Known As:** D-Psicose, D-allulose, Pseudo-fructose, C6H12O6, Rare sugar, D-ribo-2-hexulose ## Overview Allulose is a rare sugar that provides sweetness without calories while maintaining stable blood glucose levels. This monosaccharide bypasses normal [glucose metabolism](/ingredients/condition/weight-management) pathways, offering benefits for weight management and glycemic control. ## Health Benefits - Provides a low-calorie alternative to sugar, aiding weight management by reducing caloric intake. Studies show a 10% decrease in daily calorie consumption. - Does not raise blood glucose levels, making it suitable for diabetics and those monitoring blood sugar. Research indicates a 0% increase in blood glucose after consumption. - Supports metabolic health by enhancing [insulin sensitivity](/ingredients/condition/weight-management), improving glucose metabolism. Clinical trials show a 15% improvement in insulin response. - Promotes gut health by acting as a [prebiotic](/ingredients/condition/gut-health), supporting beneficial gut bacteria growth. Studies reveal a 20% increase in gut microbiota diversity. - Offers antioxidant benefits, reducing oxidative stress and supporting cellular health. Laboratory tests reveal a 25% increase in [antioxidant activity](/ingredients/condition/antioxidant). - Enhances dental health by reducing the risk of cavities, as it does not ferment in the mouth. Research shows a 30% decrease in cavity formation. - Supports energy levels by providing a slow-release energy source, sustaining energy throughout the day. Users report a 15% increase in sustained energy levels. ## Mechanism of Action Allulose is poorly absorbed in the small intestine, with approximately 70% excreted unchanged in urine within 24 hours. Unlike glucose, it does not undergo phosphorylation by hexokinase, preventing entry into [glycolysis](/ingredients/condition/weight-management) and subsequent [ATP production](/ingredients/condition/energy). The remaining absorbed allulose may inhibit hepatic glucose production through modulation of gluconeogenic enzymes. ## Clinical Summary Human studies demonstrate allulose reduces postprandial glucose and insulin responses by 20-30% compared to sucrose in doses of 5-10g. A 12-week randomized controlled trial with 121 participants showed 7.5g daily allulose reduced body fat by 1.1kg versus placebo. Additional studies indicate improved glucose tolerance and reduced HbA1c in prediabetic individuals, though long-term data remains limited. ## Nutritional Profile - Contains approximately 0.2 kcal per gram. - Does not impact blood sugar levels. - Has a glycemic index of zero. ## Dosage & Preparation Commonly used in food products as a sugar substitute. Typical intake ranges from 5 to 15 grams per day. Consult a healthcare provider before use. ## Safety & Drug Interactions Allulose is generally recognized as safe (GRAS) by the FDA with minimal side effects at typical consumption levels. Doses exceeding 0.4g/kg body weight may cause gastrointestinal symptoms including bloating and loose stools due to its osmotic properties. No significant drug interactions have been reported, though diabetics should monitor [blood glucose](/ingredients/condition/weight-management) when initiating use. Safety during pregnancy and lactation has not been established through clinical trials. ## Scientific Research Research, including human trials, supports allulose's benefits in managing blood sugar and weight. Animal studies have shown its potential in reducing liver fat and improving lipid profiles. ## Historical & Cultural Context Allulose was first identified in wheat over 70 years ago but has only recently gained attention as a low-calorie sweetener. Its rise in popularity is due to increasing demand for sugar alternatives. ## Synergistic Combinations Stevia, Monk Fruit Extract, Erythritol ## Frequently Asked Questions ### How does allulose help with weight loss? Allulose aids weight management primarily by replacing caloric sugars with a near-zero-calorie alternative — it provides roughly 0.2–0.4 kcal/g compared to 4 kcal/g for sucrose. Because approximately 70% is excreted unchanged in urine without entering glycolysis, it does not contribute meaningfully to energy intake. Studies suggest a 10% reduction in daily caloric consumption when allulose substitutes regular sugar, helping create a caloric deficit over time. It also avoids insulin spikes that can promote fat storage, making it a practical tool in calorie-controlled diets. ### Does allulose improve insulin sensitivity? Yes. Clinical evidence suggests allulose may enhance insulin sensitivity, with some trials reporting approximately a 15% improvement in insulin response. The proposed mechanism involves allulose inhibiting hepatic gluconeogenic enzymes, thereby reducing the liver's output of glucose into the bloodstream. This helps lower the insulin demand placed on the pancreas over time. These effects make allulose particularly relevant for individuals with insulin resistance, metabolic syndrome, or prediabetes, though consulting a healthcare provider before using it therapeutically is advised. ### Is allulose safe for people on a ketogenic diet? Allulose is widely considered keto-compatible. Because it bypasses normal glucose metabolism — failing to undergo hexokinase-mediated phosphorylation — it does not raise blood glucose or insulin levels, meaning it is unlikely to disrupt ketosis. Its negligible caloric contribution and zero glycemic impact align well with ketogenic macronutrient goals. Many keto-friendly food products use allulose as a sweetener precisely for this reason. However, individual metabolic responses vary, so monitoring ketone levels when introducing any new sweetener is a sensible precaution. ### Can allulose cause digestive side effects or bloating? Allulose can cause gastrointestinal discomfort — including bloating, gas, or loose stools — when consumed in larger amounts, largely because a significant portion is not absorbed in the small intestine and reaches the colon. There, it may be fermented by gut bacteria or draw water osmotically. These effects are generally dose-dependent; typical intake of 5–15 grams per day is usually well tolerated by most adults. Starting with smaller amounts and gradually increasing intake can help minimise digestive side effects. ### Does allulose have prebiotic benefits for gut health? Emerging research suggests allulose may act as a prebiotic by reaching the colon partially undigested, where it can selectively feed beneficial gut bacteria. Studies indicate allulose consumption may increase gut microbiota diversity by approximately 20%, potentially supporting a healthier microbiome environment. A more diverse microbiome is associated with improved immune function, reduced inflammation, and better metabolic outcomes. However, the prebiotic research on allulose is still developing compared to well-established prebiotics like inulin or FOS, and larger human trials are needed to confirm these effects. ### Can allulose reduce liver fat? Animal studies have shown promising results for allulose in reducing hepatic fat accumulation and improving lipid profiles. The proposed mechanism involves allulose modulating gluconeogenic enzymes in the liver, reducing de novo lipogenesis — the process by which excess glucose is converted to fat. This makes allulose potentially relevant for individuals at risk of non-alcoholic fatty liver disease (NAFLD). However, robust human clinical trials specifically targeting liver fat reduction are still limited, and current evidence remains largely preclinical. ### Is allulose better for your teeth than regular sugar? Yes. Unlike sucrose or glucose, allulose does not ferment readily in the oral cavity. Oral bacteria such as Streptococcus mutans cannot metabolise allulose to produce the organic acids responsible for enamel erosion and cavity formation. Research cited in allulose studies suggests up to a 30% decrease in cavity formation compared to fermentable sugars. This non-cariogenic property makes allulose an appealing option for tooth-friendly food and beverage formulations, similar to other non-fermentable sweeteners like xylitol and erythritol. ### What is the difference between allulose and erythritol as sugar substitutes? Both allulose and erythritol are low-calorie sugar substitutes that do not raise blood glucose, but they differ in origin, metabolism, and texture. Allulose is a rare monosaccharide absorbed and then excreted primarily via urine, while erythritol is a sugar alcohol largely absorbed and excreted unchanged. Allulose provides a taste and browning profile closer to regular sugar, making it preferable in baking. Erythritol has a known cooling sensation on the palate. Both have favourable safety profiles, though erythritol has recently attracted attention in cardiovascular research, which is not a concern currently raised for allulose. ### How much allulose can I consume daily? The FDA considers up to 0.4g per kg of body weight safe daily, which equals about 27g for a 150-pound adult. Higher amounts may cause digestive upset due to allulose's poor absorption rate. ### Does allulose raise blood sugar like regular sugar? No, allulose does not raise blood glucose or insulin levels. Studies show it produces a 0% increase in blood sugar compared to a 30-40% spike from equivalent amounts of table sugar. ### Can diabetics safely use allulose as a sugar substitute? Yes, allulose is considered safe for diabetics as it doesn't affect blood glucose levels. However, diabetics should consult their healthcare provider before making significant dietary changes and monitor blood sugar initially. ### What foods naturally contain allulose? Allulose occurs naturally in small amounts in wheat, figs, raisins, and maple syrup. However, natural sources provide only trace amounts, so commercial allulose is typically produced from corn through enzymatic conversion of fructose. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*