Keto Sweeteners and Additives: A Quick Reference Table

This keto sweeteners and additives table is the quick reference I wanted after getting burned by sugar-free labels, tiny serving sizes, maltitol, maltodextrin, and blends that looked harmless on the front of the package.

How I read this table

Glycemic index can be useful, but it is not perfect. It works best for foods that contain meaningful digestible carbohydrate. It is less useful for high-intensity sweeteners like stevia, monk fruit, sucralose, and aspartame because those are used in tiny amounts. With those, the bigger issue is often the carrier, filler, or blend.

So I use the table this way:

• Green-light does not mean unlimited.
• Low impact does not mean craving-proof.
• “Sugar-free” does not mean carbohydrate-free.
• Blends matter more than marketing words.
• My own response matters more than someone else’s perfect chart.

Keto sweetener and additive table

Sweetener / additive	What it is	Glycemic impact shorthand	What I do
Erythritol	Sugar alcohol	Commonly cited as very low / near 0	One of my safer bulk-sweetener options, but I still do not treat keto sweets as unlimited.
Allulose	Rare sugar metabolized differently than traditional sugar	Very low; FDA allows 0.4 calories per gram for labeling	Useful when I want something closer to sugar, especially for recipes.
Stevia, pure extract	High-intensity plant-derived sweetener	Usually treated as 0 for practical keto use	Fine in small amounts, but too much tastes bitter to me. I check blends.
Monk fruit, pure extract	High-intensity fruit-derived sweetener	Usually treated as 0 for practical keto use	Good taste for me, but most products are blends, so I read the ingredients.
Sucralose, pure	High-intensity artificial sweetener	Usually treated as 0 by itself	I worry less about pure sucralose than about packets or powders with fillers.
Aspartame	High-intensity artificial sweetener	Usually treated as 0 by itself	Not my favorite taste. People with PKU need to avoid or restrict it.
Xylitol	Sugar alcohol	Lower than sugar, but not zero	I treat it as a sometimes ingredient. It can bother digestion, and it is dangerous for dogs.
Sorbitol	Sugar alcohol	Lower than sugar, but not zero	I usually skip it because stomach issues are not worth it for me.
Isomalt	Sugar alcohol	Lower than sugar; product tolerance varies	I treat it carefully, especially in candy, and still check total carbs.
Maltitol	Sugar alcohol	Moderate to high for a sugar alcohol; product response varies	My biggest sugar-free candy warning sign. I usually avoid it.
Maltodextrin	Fast-digesting carbohydrate filler/additive	High	Sneaky trap in powders, packets, and mixes. I treat it like real carb impact.
Dextrose / glucose	Sugar	High; glucose is the reference point	If I see it, I do not pretend it is keto magic.
Sucrose / table sugar	Sugar	High	Not hidden if I am honest, but it shows up under many names.

The labels I slow down for

These are the words that make me stop and read more carefully:

• maltitol
• maltodextrin
• dextrose
• glucose
• corn syrup
• rice syrup
• starch
• “sugar alcohol” without knowing which one
• tiny serving sizes that make the numbers look better

Not every one of those means “never eat it.” It just means I do not let the front of the package make the decision for me.

My simple rule

If the sweetener helps me stay consistent, does not wreck my stomach, does not wake up cravings, and fits the label, I can use it sometimes.

If it turns into a loophole for eating dessert every night, I do not care how good the table looks. It is not helping me.

That is the part no glycemic index chart can decide for me.

The bottom line

For keto, the best sweetener is not always the one with the prettiest number. The best sweetener is the one that fits my carbs, does not keep cravings loud, and helps me repeat the plan tomorrow.

For me, that usually means allulose, erythritol, monk fruit, or stevia in modest amounts. It usually means skipping maltitol-heavy candy and watching hard for maltodextrin, dextrose, and tiny-serving label tricks.

Boring? Yes. Useful? Also yes.

Related reading

• Artificial vs Natural Sweeteners on Keto: What I Actually Use Now
• The Hidden Carb Traps That Still Got Me (Even When I Thought I Was Strict)
• Keto Bloating, Fiber, and Sugar-Free Candy: What I Learned the Hard Way
• Keto Cravings at Night: What Helped Me Stop Raiding the Kitchen
• Almond Flour vs Coconut Flour on Keto: What Actually Worked for Me
• Eating Out on Keto Without Making It Weird

Sources and further reading

• FDA: High-Intensity Sweeteners
• FDA: Sugars That Are Metabolized Differently Than Traditional Sugars
• FDA: Allulose labeling guidance
• American Diabetes Association: What Are Sugar Alcohols?
• PubMed: Maltitol glycemic and insulin response study
• PMC: Erythritol dietary component review