Maltitol

A sugar alcohol used to replace table sugar. It provides bulk and sweetness with fewer calories, helps hold moisture (humectant: an ingredient that attracts and retains water), and is less likely to cause tooth decay than sugar.

Should I eat Maltitol?

Maltitol is a highly refined, hydrogenated sweetener that can cut sugar and protect teeth, but your gut sets the limit. If a label shows a lot of polyols, keep servings modest—aim under about 20 g polyols at once—to avoid cramps or diarrhea.

Summary

Maltitol is a sugar alcohol made from corn or wheat starch by hydrogenation. It tastes close to sugar, provides bulk, and delivers about 2.4 kcal per gram with a smaller blood‑sugar rise than sugar. U.S. rules allow a “does not promote tooth decay” claim, and international reviews set an ADI “not specified,” while the EU continues to update evaluations. The main trade‑off is digestive tolerance: large servings or stacking several polyols can cause gas, bloating, and loose stools. If you have a sensitive gut (e.g., IBS) or you’re buying treats for kids, start low, check total polyols per serving, and space out portions.

Key Research Points

Gut tolerance is dose‑limited

Maltitol can cause gas, bloating, and diarrhea when you eat a lot. Keep total polyols under about 20 g per serving and avoid day‑long intakes above ~30–50 g to lower the risk.

Lower blood sugar, not zero

It raises blood glucose less than sugar, but it still counts as carbohydrate and adds about 2.4 kcal per gram. If you manage diabetes or weight, include it in your carb and calorie totals.

Tooth‑friendly and safety‑reviewed

Maltitol is eligible for the U.S. ‘does not promote tooth decay’ claim, and global safety bodies set an ADI ‘not specified’ with EU re‑evaluation ongoing. This means no numeric daily limit was needed based on toxicity data while reviews continue.

Overview

What is it?

Source: Corn or wheat

Method: Liquefy & saccharify, then hydrogenate and crystallize

Processing Level: 8 / 10

Why is it used?

Purpose: Bulk sweetener and humectant for sugar‑reduced foods.

Commonly found in: Sugar-free candy, Chocolate, Cookies, Ice cream, Chewing gum

Why manufacturers choose it: Sucrose‑like taste and functionality with fewer calories and noncariogenic claim eligibility.

Origin

Maltitol is made by hydrogenating maltose, which itself is produced by breaking down starch from grains like corn or wheat. As catalytic hydrogenation and food-grade enzyme technology matured in the mid-20th century, maltitol became a popular sucrose replacer in European confectionery and later globally for sugar-free chocolates and candies.

Process: Liquefy & saccharify, then hydrogenate and crystallize

Steps

1. Liquefy starch: Cook starch with water to make a pumpable slurry.

2. Enzymatic saccharification: Use amylases to convert starch to maltose-rich syrup.

3. Hydrogenation: React maltose with hydrogen over nickel catalyst to form maltitol.

4. Purification: Decolorize and deionize (activated carbon, ion exchange), filter.

5. Crystallize & dry: Concentrate, crystallize, centrifuge, and dry to powder; mill to size.

Chemicals

Hydrogen gas

Nickel (catalyst)

Sodium hydroxide (pH control)

Acids for hydrolysis (when not fully enzymatic)

Activated carbon (processing aid)

Ion-exchange resins

Research & Safety

Potential Concerns

The chief concern is digestive tolerance: large single servings or high daily totals of polyols can cause GI discomfort or diarrhea. Although its glycemic impact is lower than sugar, maltitol still contributes digestible carbohydrate and energy, so portion control matters, especially for people with diabetes. EU labels must warn that products with more than 10% added polyols may have laxative effects, underscoring this practical limit. EFSA’s ongoing re‑evaluation of sweeteners, including maltitols, reflects a desire for updated, harmonized evidence reviews rather than any specific hazard signal. ([eur-lex.europa.eu](https://eur-lex.europa.eu/eli/reg/2012/432/2014-05-13/eng?utm_source=openai))

Potential Benefits

Maltitol helps cut sugars while preserving bulk and texture, which makes lower‑sugar candies, chocolate, baked goods, and frozen desserts more palatable. It provides about 2.1 kcal per gram in U.S. labeling—roughly half the calories of sugar—and generally causes a smaller rise in blood glucose and insulin than sucrose. It is also noncariogenic and can support U.S. dental‑health and EU tooth‑mineralisation claims when products meet test conditions. These properties explain its common use in “sugar‑free” or “no added sugar” confectionery. ([law.cornell.edu](https://www.law.cornell.edu/cfr/text/21/101.9?utm_source=openai))

Digestive Effects

Tolerance varies by person and context (food matrix, whether other polyols are present). Reviews and product‑development guidance suggest keeping total polyols near or below 20 g per serving to minimize symptoms. In a controlled crossover study, healthy adults showed dose‑dependent symptoms, with diarrhea occurring only at unusually high day‑long intakes (~90 g). EU risk‑management notes also indicate that, in solid foods, polyols are unlikely to cause laxation below about 20 g/day from all sources. Children and people with IBS generally report symptoms at lower intakes. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC7400077/))

Limit Consumption

People with IBS or sensitive GI tracts are more likely to experience symptoms from polyols, and combining different polyols can lower tolerance thresholds. Children may also be more sensitive to osmotic effects, so smaller portions are prudent. Individuals with diabetes should remember that maltitol still adds carbohydrate and calories, even though its glycemic impact is lower than sugar. There are no common allergy concerns; regulatory reviews have not identified systemic toxicity at typical dietary exposures. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28710145/?utm_source=openai))

Fact Sheet

Regulatory Status

US FDA: Used as a nutritive sweetener; eligible for the ‘does not promote tooth decay’ health claim per 21 CFR 101.80; widely considered GRAS when used in foods under GMP.

EU Status: E965(i) Maltitol; authorized in multiple categories; products with >10% added polyols require laxative warning.

Codex INS: INS 965

JECFA ADI: ADI ‘not specified’

ESG & Sustainability

Environmental Footprint: Depends on starch source (corn/wheat) and hydrogenation energy; nickel catalyst used and recovered; limited public LCAs specific to maltitol.

Sustainability: Large-scale starch sourcing; sustainability varies by crop region, fertilizer inputs, and milling efficiency.

Animal Welfare: Plant-derived; no direct animal inputs.

Carbon Footprint: No ingredient-specific peer-reviewed LCA found; expect similar order of magnitude to other refined starch derivatives plus hydrogenation energy.

Allergens and Diet

Allergen Status: None

Diet Compatibility: Vegan, Vegetarian, Kosher, Halal, Gluten-free, Dairy-free

Natural Alternatives

Honey

Source: Honeybees (nectar)

Processing Level: Light

Common Uses: Glazes, bars, baking

Replacement Benefit: Contains trace antioxidants and bioactives; highly familiar ingredient.

Why it's not used: Maltitol enables ‘sugar-free’ positioning and dental claim; honey raises sugars/calories and can crystallize differently.

Dates

Source: Date palm fruit

Processing Level: Light

Common Uses: Bars, baked goods, confectionery pastes

Replacement Benefit: Adds fiber, potassium, and polyphenols; minimal processing compared with refined sweeteners.

Why it's not used: Maltitol better mimics sucrose crystallization and provides lower calories with dental benefits; dates add flavor, color, and more sugars.

Inulin

Source: Chicory root

Processing Level: Moderate

Common Uses: Bulking, fiber enrichment, mild sweetness

Replacement Benefit: Prebiotic fiber that can improve stool consistency and increase bifidobacteria.

Why it's not used: Maltitol is sweeter (~0.8–1.0× sucrose) and handles chocolate/candy processing better; inulin can cause texture/waxiness and GI symptoms at lower doses.