Sweeteners · Updated June 3, 2026 · 8 min read

The Best Sugar Substitutes (and Which to Avoid)

Cutting back on sugar doesn't have to mean giving up sweetness. The market is crowded with alternatives — from ancient herbal extracts to lab-engineered molecules — and the quality varies enormously. This guide breaks down the best sugar substitutes by how they taste, how they bake, and how they affect your body, so you can make a confident choice. Already watching your intake? Check how much sugar per day is actually recommended, and learn to spot hidden sugar in foods.

Why switch from regular sugar?

Table sugar (sucrose) delivers 4 calories per gram and spikes blood glucose rapidly. Over time, consistently high sugar intake is linked to unwanted weight gain, energy crashes, and dental cavities. Reducing it — even partially — can smooth out energy levels and lower overall calorie load. Sugar substitutes let you keep some sweetness while taking back control. That said, not every alternative on store shelves is created equal.

The best natural zero- and low-calorie sweeteners

Stevia

Extracted from the leaves of Stevia rebaudiana, stevia has been used in South America for centuries and is now one of the most popular zero-calorie sweeteners globally. It contains no carbohydrates and does not raise blood glucose, making it a reliable choice for most people. Best format: liquid drops or a blend cut with erythritol, which smooths out any bitterness. Avoid products with added maltodextrin, which can spike blood sugar.

Monk fruit (luo han guo)

Monk fruit sweetener comes from a small gourd native to southern China. Its sweetness comes from mogrosides — antioxidant compounds that are not metabolised by the body for energy. The taste is generally considered cleaner than stevia, with little to no aftertaste. It is also heat-stable, so it works well in hot drinks and light baking. The main downside is price — monk fruit is among the most expensive options.

Erythritol

Erythritol is a sugar alcohol that occurs naturally in small amounts in fruit and fermented foods. Around 90% of it is absorbed in the small intestine and excreted unchanged in urine, which is why it delivers almost no calories. It has a slight cooling sensation on the tongue, which most people find pleasant in cold beverages and baked goods. Bulk use (over 30–50 g per day) can cause loose stools in sensitive individuals, but moderate amounts are well tolerated.

Allulose

Allulose is a rare sugar that occurs in tiny amounts in figs and wheat. Structurally it is almost identical to fructose, but the body cannot metabolise it — nearly all of it is excreted through urine. What makes allulose stand out is its baking performance: it browns, caramelises, and creates moist textures much like regular sugar. If you bake frequently, allulose is often the best substitute available.

Xylitol

Xylitol matches sugar's sweetness almost one-to-one and has a well-established benefit for dental health — it inhibits the bacteria that cause cavities. However, it has about half the calories of sugar and a low but non-zero glycaemic index. Large amounts cause digestive discomfort, and xylitol is highly toxic to dogs — keep it well out of reach of pets. For households with dogs, erythritol or allulose are safer choices.

"Natural" sweeteners to use sparingly

Honey, maple syrup, coconut sugar, and agave nectar are often marketed as healthier alternatives to white sugar — and while they do contain trace minerals and antioxidants, they are still primarily sugar. Their glycaemic and caloric impact is not dramatically different from table sugar. Use them for flavour complexity in recipes where a small quantity goes a long way, but do not treat them as free replacements.

• Honey: ~64 kcal/tbsp, GI 55–65. Rich flavour; best raw, drizzled sparingly.
• Maple syrup: ~52 kcal/tbsp, GI ~54. Excellent in oatmeal or marinades in small amounts.
• Coconut sugar: ~15 kcal/tsp, GI ~35. Slightly lower GI than white sugar; still high in calories.
• Agave nectar: ~21 kcal/tsp, low GI but very high in fructose — moderation is key.

A note on artificial sweeteners

Aspartame, sucralose, saccharin, and acesulfame-K have been studied extensively and are considered safe at typical consumption levels by major food safety agencies worldwide. They are very effective at reducing calorie intake when used to replace sugar in drinks and processed foods. Some people experience digestive sensitivity to sucralose or saccharin, and ongoing research continues to explore potential effects on gut microbiota. If you prefer to avoid them, the natural alternatives above are excellent options.

Best sugar substitute for coffee

For coffee and tea, liquid stevia or monk fruit drops are the top picks. They dissolve instantly, add zero calories, and do not alter the drink's texture. A small bottle lasts months. If you dislike the slight herbal note of stevia, monk fruit is cleaner — though pricier. Erythritol also works well and dissolves reasonably in hot liquids. Avoid granulated substitutes that leave grit at the bottom of your cup.

Best sugar substitute for baking

Baking is where most substitutes struggle — sugar does far more than sweeten; it provides structure, moisture, and browning. Allulose comes closest to replicating sugar's full role: it caramelises, keeps baked goods moist, and blends seamlessly into batters. A 1:1 allulose-to-sugar swap works in most recipes. For recipes where browning matters less (shortbread, cheesecakes), a blend of erythritol + a few drops of stevia is a cost-effective alternative. Xylitol also works at a 1:1 ratio but watch portions, especially if pets are present.

No substitute perfectly replicates sugar in every recipe — but allulose comes remarkably close in baked goods, and stevia or monk fruit are hard to beat for drinks.

How to make the switch gradually

If you are used to sweetened food and drinks, going cold turkey on sugar can feel overwhelming. A stepped approach works better. Start by replacing the sweetener in your daily coffee or tea — the impact is immediate and you will quickly adjust. Then tackle packaged foods that contain hidden sugar. Once you understand how much sugar per day is appropriate for you, you can set a personal target and use substitutes strategically to stay under it without feeling deprived.

1. Swap sugar in hot drinks first — easiest win with the biggest daily impact.
2. Replace table sugar in yoghurt, oatmeal, or cereal with a stevia or monk fruit blend.
3. Experiment with allulose or erythritol in one baking recipe per week.
4. Audit packaged foods for hidden sugar and choose products that already use natural substitutes.
5. Reassess after 2–3 weeks — your palate adapts and you will need less sweetness overall.

Frequently asked questions

What is the healthiest sugar substitute overall?

For most people, stevia or monk fruit are the top choices — both are zero calorie, have no impact on blood glucose, and come from natural plant sources. If you bake frequently, allulose is the most versatile option.

Is erythritol safe to use every day?

Yes, erythritol is widely considered safe at moderate daily amounts (up to around 30 g). Higher doses can cause temporary digestive discomfort in some people, but for most adults using it in tea, coffee, and occasional baking it poses no concern.

Do natural sweeteners like honey still count as sugar?

Yes. Honey, maple syrup, coconut sugar, and agave all contain significant amounts of sugar (glucose and/or fructose) and contribute calories and glycaemic load. They are not free alternatives — use them for flavour in small quantities, not as a wholesale replacement for white sugar.

This article is for general wellness information only and is not medical advice. If you have a condition such as diabetes, talk to your doctor before changing your diet.