0
Glycemic Index
10+
Clinical Studies
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Active Mechanisms
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Cited Sources
Clinical Guide Zero GI Verified FDA GRAS

Allulose for Diabetics: The Complete Clinical Guide to Zero Glycemic Sweetness

Published January 2, 2025 | Jaca Rare Sugar Clinical Research | 18 min read

Medical Disclaimer: This information is for educational purposes only and is not intended as medical advice. Please consult your healthcare provider or diabetes care team before making changes to your diet or diabetes management plan.

1 Zero Blood Sugar Impact: Allulose has a glycemic index of 0, causing no measurable rise in blood glucose levels
2 Active Blood Sugar Control: Clinical studies show allulose may actually help reduce postprandial glucose spikes
3 GLP-1 Stimulation: Triggers the same metabolic pathway as modern diabetes medications like Ozempic
4 FDA Recognition: Does not count as sugar or carbs on nutrition labels per FDA guidance
Official FDA Statement
U.S. Food & Drug Administration

"The latest data suggests that Allulose is different from other sugars in that it is not metabolized by the human body in the same way as table sugar. Allulose has fewer calories, produces only negligible increases in blood glucose or insulin levels, and does not promote dental decay. As such, we've issued guidance today stating that we intend to exercise enforcement discretion to allow Allulose to be excluded from the total and added sugars declarations on the Nutrition Facts and Supplement Facts labels when Allulose is used as an ingredient."

Susan Mayne, Ph.D.
Director, FDA Center for Food Safety and Applied Nutrition
FDA Full Guidance

Managing blood sugar while still enjoying sweet foods is one of the biggest challenges for people with diabetes. Jaca Sugar's pure allulose offers a breakthrough solution: genuine sugar-like sweetness with a glycemic index of zero, plus clinical research suggesting it may actually help improve blood glucose control.

Section I

Why Allulose is Diabetic Friendly

Allulose (also known as D-psicose) is a rare sugar that occurs naturally in small amounts in foods like figs, raisins, and wheat. While it tastes and functions remarkably like regular sugar, your body processes it completely differently—making it ideal for people managing diabetes.

The Key Difference: Zero Metabolic Impact

When you eat regular sugar (sucrose or glucose), your body breaks it down and absorbs it into the bloodstream, raising blood glucose levels and requiring insulin to process. Allulose is different:

Not metabolized for energy

Your body doesn't convert allulose into glucose

No insulin spike

Doesn't trigger the insulin response that regular sugar does

Excreted unchanged

Most is absorbed then passed through your kidneys without being used

Zero glycemic index

Causes no measurable rise in blood sugar

This means people with Type 1 diabetes, Type 2 diabetes, prediabetes, or insulin resistance can enjoy allulose without the blood sugar spikes that make managing diabetes so challenging.

Section II

Clinical Research: Allulose and Blood Sugar

Unlike many sweetener marketing claims, allulose's benefits for blood sugar management are backed by rigorous clinical research published in peer-reviewed medical journals.

SYSTEMATIC REVIEW

Meta-Analysis: Postprandial Blood Glucose Attenuation

PLOS ONE • 2023

A comprehensive systematic review analyzed multiple clinical studies on allulose and blood glucose:

5g of allulose significantly attenuated postprandial blood glucose (P = 0.02)
10g of allulose showed even greater reduction in blood glucose area under the curve
Results were consistent across studies with no significant heterogeneity

Tanaka M, et al. "Allulose for the attenuation of postprandial blood glucose levels in healthy humans: A systematic review and meta-analysis." PLOS ONE. 2023. View Study →

RCT DOUBLE-BLIND

US Population Study: Dose-Dependent Effects

BMJ Open Diabetes Research & Care • 2021

A prospective, randomized, double-blind, placebo-controlled crossover study evaluated allulose in a US population:

Allulose significantly reduced postprandial blood glucose after sucrose load
Effects were dose-dependent (2.5g, 5.0g, 7.5g, 10.0g doses tested)
Glucose-lowering effect appeared independent of insulin

Braunstein CR, et al. "Effects of D-allulose on glucose tolerance and insulin response to a standard oral sucrose load." BMJ Open Diabetes Research & Care. 2021. View Study →

Section III

How Allulose Helps Control Blood Sugar

Research has identified multiple mechanisms by which allulose supports blood glucose regulation. Rather than simply being "neutral," allulose actively works to reduce blood sugar spikes:

1

Alpha-Glucosidase Inhibition

Allulose inhibits alpha-glucosidase, the intestinal enzyme that breaks down complex carbohydrates into simple sugars for absorption. By slowing this process, allulose reduces the rate at which glucose enters the bloodstream after meals. This is similar to the mechanism of some diabetes medications (like acarbose).

2

GLP-1 Release

Allulose stimulates the release of GLP-1 (glucagon-like peptide-1) from intestinal L-cells. GLP-1 is the same hormone targeted by popular diabetes and weight management medications like Ozempic and Wegovy. GLP-1 enhances insulin secretion in response to glucose, inhibits glucagon release, slows gastric emptying, and promotes satiety.

3

Competitive Absorption

Allulose and glucose share the same intestinal transporters (GLUT2 and GLUT5). When allulose is present, it competes with glucose for absorption, effectively slowing the rate at which glucose enters your bloodstream.

4

Hepatic Glycogen Synthesis

Allulose promotes glycogen synthesis in the liver. Glycogen is the storage form of glucose, so by encouraging the liver to convert blood glucose into glycogen, allulose helps remove excess sugar from circulation.

Iwasaki Y, et al. "GLP-1 release and vagal afferent activation mediate the beneficial metabolic and chronotherapeutic effects of D-allulose." Nature Communications. 2018. View Study →

Section IV

The GLP-1 Connection: Natural Support Like Modern Medications

One of the most exciting discoveries about allulose is its ability to stimulate GLP-1 release—the same mechanism leveraged by groundbreaking diabetes and weight loss medications like semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro).

GLP-1's Effects Include:

Enhanced insulin secretion

But only in response to glucose (glucose-dependent), reducing hypoglycemia risk

Suppressed glucagon

Reducing liver glucose output

Slowed gastric emptying

Leading to more gradual glucose absorption

Increased satiety

Promoting fullness and reducing appetite

Research published in Nature Communications demonstrated that allulose induces GLP-1 release and activates vagal afferent signaling, contributing to improved glucose tolerance. While allulose isn't a medication and shouldn't replace prescribed treatments, it represents a dietary approach that works through similar pathways.

Section V

Glycemic Index Comparison: Sweeteners for Diabetics

Not all sweeteners are equal when it comes to blood sugar impact. Here's how common sweeteners compare:

Sweetener Glycemic Index Notes for Diabetics
Allulose (Jaca) 0 Zero impact; may help reduce blood sugar spikes
Stevia 0 Zero impact; bitter aftertaste for some
Monk Fruit 0 Zero impact; often mixed with erythritol
Erythritol 0 Zero impact; cooling sensation; recent cardiovascular concerns
Xylitol 13 Low impact; can cause digestive issues
Maltitol 35 Moderate impact; often in "sugar-free" products
Coconut Sugar 54 Still raises blood sugar significantly
Honey 58 Raises blood sugar; high in fructose
Table Sugar 65 Significant blood sugar impact
Glucose 100 Reference point; maximum glycemic impact
Section VI

FDA Labeling: Allulose and Carbohydrate Counting

For diabetics who count carbohydrates, understanding how allulose fits into nutrition calculations is crucial. The FDA has provided specific guidance:

FDA Guidance on Allulose (April 2019)

Not counted as sugar: Allulose should not be included in "Total Sugars" or "Added Sugars" on nutrition labels
Reduced calorie count: Allulose contributes only 0.4 kcal/g (vs. 4 kcal/g for regular sugar)
Carbohydrate calculation: While allulose may appear in "Total Carbohydrates," it can be subtracted when calculating net carbs

This means when you see allulose on an ingredient list, you don't need to account for it in your carb counting or bolus calculations the way you would for regular sugar.

Sweet Freedom for Diabetics

Jaca Sugar is 100% pure allulose—zero glycemic impact, zero net carbs to count, and it tastes like real sugar because it IS real sugar.

Shop Jaca Rare Sugar
Section VII

Why Jaca is the Ideal Choice for Diabetics

For people managing diabetes, product purity matters enormously. Hidden ingredients in sweetener blends can unexpectedly spike blood sugar. Jaca Sugar offers complete transparency and purity:

What Makes Jaca Different

100% Pure Allulose

No fillers, no bulking agents, no hidden carbs

No Maltodextrin

Unlike many sweeteners with GI of 85-105

No Dextrose

No added glucose that would spike blood sugar

Clean Label

One ingredient means no surprises

Section VIII

Practical Tips for Using Allulose with Diabetes

In Beverages

Allulose dissolves completely in both hot and cold beverages, making it perfect for coffee, tea, smoothies, and more. Start with 1-2 teaspoons per serving and adjust to taste. Remember, allulose is about 70% as sweet as sugar, so you may want slightly more than you'd use of regular sugar.

In Cooking and Baking

Unlike most diabetic-friendly sweeteners, allulose behaves like real sugar in cooking:

Browns and caramelizes for golden cookies
Creates caramel sauce and toffee
Provides moisture in baked goods
Works in frozen desserts without crystallizing

Conversion tip: Use about 1.3x the amount of sugar called for. If a recipe calls for 1 cup sugar, use about 1⅓ cups of Jaca allulose.

Monitoring Your Response

While clinical research shows allulose doesn't raise blood sugar in most people, individual responses can vary. When first introducing allulose:

Check your blood glucose before and after consuming allulose-sweetened foods
Note any patterns in your response
Share your findings with your diabetes care team

Most people find their blood sugar remains stable or even improves when substituting allulose for regular sugar.

Section IX

Long-Term Safety for Diabetics

Safety is paramount when choosing any food for long-term diabetes management. Allulose has been studied extensively:

Safety Evidence

48-week study: Long-term daily use showed no adverse effects on liver function, kidney function, or cardiovascular markers
FDA GRAS status: Generally Recognized As Safe by the U.S. Food and Drug Administration
30+ years of use in Japan: Used in over 4,000 products with extensive real-world safety data
No hypoglycemia risk: Unlike some diabetes treatments, allulose doesn't cause blood sugar to drop too low
Frequently Asked Questions

Clinical FAQ: Allulose for Diabetes

Is allulose safe for diabetics?

Yes, allulose is considered safe and beneficial for people with diabetes. It has a glycemic index of zero, meaning it does not raise blood sugar levels. Clinical studies have shown allulose can actually help reduce postprandial (after-meal) blood glucose levels, making it an excellent sweetener choice for diabetes management.

Does allulose raise blood sugar?

No, allulose does not raise blood sugar. Unlike regular sugar which causes blood glucose spikes, allulose passes through the body without being metabolized for energy. Multiple clinical studies, including a systematic review and meta-analysis, have confirmed that allulose does not increase blood glucose levels and may actually help reduce them after meals.

Can diabetics count allulose as sugar or carbs?

No, diabetics do not need to count allulose as sugar or toward total carbohydrates. The FDA has determined that allulose should not be included in total or added sugars on nutrition labels, and it can be subtracted from total carbohydrates when calculating net carbs. This is because allulose is not metabolized like regular carbohydrates.

How does allulose help with blood sugar control?

Allulose helps with blood sugar control through multiple mechanisms: it inhibits alpha-glucosidase enzymes that break down complex carbohydrates, it stimulates GLP-1 release which enhances insulin response, it promotes glycogen synthesis in the liver, and it competes with glucose for intestinal absorption, slowing glucose uptake.

Is allulose better than other sweeteners for diabetics?

Allulose offers unique advantages over other diabetic-friendly sweeteners: it tastes and functions like real sugar, it browns and caramelizes for baking, and clinical research suggests it actively helps lower blood sugar rather than just being neutral. Unlike artificial sweeteners, allulose is a natural rare sugar found in fruits.

Can I use allulose with my diabetes medication?

Allulose is a food ingredient, not a medication, and is generally compatible with diabetes treatments. However, because it may help lower blood sugar, discuss with your healthcare provider—especially if you're on medications that can cause hypoglycemia. Your provider may want to monitor your levels as you incorporate allulose.

How much allulose can a diabetic safely consume?

Research suggests up to 0.4g per kg body weight per single serving and up to 1g per kg body weight per day are well-tolerated. For a 150 lb person, that's about 27g per serving and 68g per day. Most people use far less than this in typical sweetening applications. Start with smaller amounts and adjust based on your personal response.

Conclusion

A Genuine Breakthrough for Diabetics

For decades, people with diabetes have faced an impossible choice: give up sweet foods entirely, or accept blood sugar spikes and their consequences. Artificial sweeteners offered some relief but came with their own concerns about taste, safety, and functionality.

Allulose represents something genuinely new: a real sugar that your body doesn't metabolize, with clinical research showing it may actually help improve blood glucose control. Combined with its ability to taste, cook, and bake like regular sugar, allulose is the breakthrough diabetics have been waiting for.

Jaca Sugar delivers this breakthrough in its purest form—100% allulose, nothing else. For people managing diabetes who refuse to give up on sweetness, Jaca offers a path forward: rare sugar born from fruit, backed by science, and safe for your blood sugar.

Scientific References

Cited Sources

1. Tanaka M, et al. "Allulose for the attenuation of postprandial blood glucose levels in healthy humans: A systematic review and meta-analysis." PLOS ONE. 2023;18(4):e0281150.
2. Braunstein CR, et al. "Effects of D-allulose on glucose tolerance and insulin response to a standard oral sucrose load." BMJ Open Diabetes Research & Care. 2021;9(1):e001939.
3. Iwasaki Y, et al. "GLP-1 release and vagal afferent activation mediate the beneficial metabolic and chronotherapeutic effects of D-allulose." Nature Communications. 2018;9:113.
4. Han Y, et al. "A Preliminary Study for Evaluating the Dose-Dependent Effect of d-Allulose for Fat Mass Reduction in Adult Humans." Nutrients. 2018;10(2):160.
5. Tanaka M, et al. "Safety and efficacy of a 48-week long-term ingestion of D-Allulose." Fundamental Toxicological Sciences. 2020;7:15-31.
6. FDA Guidance for Industry: The Declaration of Allulose and Calories from Allulose on Nutrition and Supplement Facts Labels. April 2019.
7. Noronha JC, et al. "The effect of small doses of fructose and allulose on postprandial glucose metabolism in type 2 diabetes." Diabetes Obes Metab. 2018;20:2361-2370.
8. "Allulose in human diet: the knowns and the unknowns." British Journal of Nutrition. 2021.
9. Hossain A, et al. "Rare sugar d-psicose prevents progression and development of diabetes in T2DM model." Drug Design, Development and Therapy. 2015;9:525-535.
10. "The Metabolic and Endocrine Effects of a 12-Week Allulose-Rich Diet." Nutrients. June 2024.