What Is Maltitol? Sweeteners in Protein Bars Explained

Maltitol is a sugar alcohol (a polyol) used to sweeten many "no added sugar" protein bars. It tastes close to sugar, has fewer calories per gram, and raises blood sugar less than table sugar does, but it is not zero-calorie and large amounts can upset some stomachs. Here is what it is, why bar makers use it, and how to spot it on a label.

What is maltitol?

Maltitol is a sweetener made from maltose, a sugar that comes from starch such as corn or wheat. Through a process called hydrogenation, the maltose becomes a polyol, the family of sweeteners people call "sugar alcohols". Despite the name, it contains no alcohol of the drinking kind. On ingredient lists you may see it as maltitol, maltitol syrup or INS/E 965.

Is maltitol sugar?

No. Maltitol is not counted as sugar on a nutrition label, which is why a bar sweetened with it can say "no added sugar". It is still a carbohydrate, though, and your body absorbs part of it. That means it adds calories and has some effect on blood sugar, just less than regular sugar. If you track carbs, look at the total carbohydrate line, not only the sugar line.

Why do protein bars use maltitol?

A protein bar has to taste good enough that you want to eat it again. Plant and dairy proteins can taste dry or bitter on their own, so bars need a sweetener. Maltitol is popular because:

• It is roughly 75–90% as sweet as sugar, so it behaves like sugar in a recipe.
• It gives body and a soft chew, which many zero-calorie sweeteners cannot.
• It works well with chocolate and coatings.
• It lets a bar deliver its protein with less added sugar.

How many calories does maltitol have?

Sugar has about 4 kcal per gram. Maltitol is commonly given as about 2–3 kcal per gram, because the body does not fully absorb it. So it trims calories compared with sugar, but it is not a "free" sweetener. The calorie number printed on the bar already includes it.

Does maltitol raise blood sugar?

Less than sugar does, but it is not zero. Published figures for maltitol's glycemic index vary, and they sit well below table sugar. Other ingredients in the bar, such as protein, fibre, nuts and any sugary coating, also shape how a bar affects you. If you are managing diabetes or a medical diet, check with your doctor or dietitian about sweeteners and portion size. A label can tell you what is inside, but it cannot tell you what is right for your health.

Can maltitol upset your stomach?

For some people, yes, if they eat a lot at once. Polyols that are not fully absorbed travel to the large intestine, where they can cause gas, bloating or a laxative effect. This is why many packs that contain polyols carry a note that excessive consumption may have a laxative effect. Tolerance varies from person to person. A practical approach: start with one bar, see how you feel, and don't eat several sweetened bars back to back.

Maltitol vs other sweeteners: what's the difference?

• Sugar (sucrose): about 4 kcal/g, counted as sugar on the label.
• Maltitol: a polyol, about 2–3 kcal/g, close to sugar in taste and texture.
• Erythritol: another polyol, almost zero calories, less sweet and with a cooling taste.
• Stevia and sucralose: high-intensity sweeteners used in tiny amounts, with almost no calories.
• FOS (fructooligosaccharides): a soluble fibre with a light sweetness, often used alongside other sweeteners.
• Dates: a whole fruit. Date-sweetened bars contain natural sugars from the fruit, with no sweetener added.

None of these is "good" or "bad" on its own. The right bar depends on what you want from it: more protein, fewer added sweeteners, or a particular taste.

How do I check if a protein bar contains maltitol?

Read the full ingredient list, including the coating. Look for:

1. Maltitol, maltitol syrup or INS 965 in the main ingredients.
2. The coating's own ingredient list. Brackets after "compound coating" or "chocolate" often list sugar separately, even when the bar itself has none added.
3. Total carbohydrates, sugars and any polyols line on the nutrition panel.
4. Protein per bar, not just per 100g, so you know what one bar gives you.

Our Protein Bar Guide India walks through the whole label, step by step.

Does the Zucker Ember bar contain maltitol?

Yes, and it says so on the label. The Ember Protein Bar is a chocolate-coated bar with 12g of plant protein from soy nuggets, soy protein isolate and yeast protein, plus almonds, chia and flax seeds. It is sweetened with maltitol and FOS, and its dark compound coating contains sugar. We list every ingredient, coating included, on the product page and on our Ingredients page, so you can decide for yourself. Ember is ₹85 a bar or available in a pack of 6.

What if I'd rather skip sweeteners altogether?

Try a date bar. Zucker's Mango, Orange and Coconut date bars are sweetened only by dates, with almonds, cashews, pistachios, oats and ghee, and no refined sugar added. They have 9g of protein per bar compared with Ember's 12g, and dates are naturally sweet, so one bar is a snack-sized portion. Not sure which suits you? Read Protein Bar vs Date Bar, or try both in the Starter Box (6 Ember + 6 date bars, ₹849, free shipping).

Quick answers

• Is maltitol natural? It is made from starch-derived maltose through processing, so it is a manufactured sweetener rather than a whole food.
• Is maltitol keto? It is partly absorbed and has some effect on blood sugar, so many strict keto eaters count it as a carb.
• How many bars a day? There's no single rule. One bar as a snack is a sensible start, especially if you're new to polyols.

Questions about our bars? See the FAQ or contact us on WhatsApp. We ship across India from Jharsuguda, Odisha.