How to Find the Best Sugar-Free Protein Powder

📌 Overview and Key Takeaways

This is a Dietitian’s guide on how to find the best sugar-free protein powder.

Discover how to supplement your protein intake without sugar.

Last Updated
Jan 21, 2026

Author and Medical Reviewer

Written by Kayla Kamen, MS, RD

Kayla Kamen is a Registered Dietitian with a MS in Nutrition.

Medically reviewed by Jennifer Fossett, PA-C

Jennifer Fossett is a Physician Assistant with a BA in Nutritional Sciences.

Sugar-Free Protein Powder

Why Should I Use Protein Powder Without Sugar?

Many people go on a high protein, low sugar diet to lose weight. Some of these same people prefer to use sugar-free protein powder.

I bring this up because although sugar-free protein powder can help you lose weight, there is a lot of confusion around protein, sugar, and weight loss.

The first thing you should know is that protein powder helps with weight loss not because it is sugar-free, but because it contains a lot of protein per calorie.

Because protein is the most satiating (filling) macronutrient, increasing the percentage of your calories that come from protein will make you feel full for longer.

This, in turn, will curb cravings and overeating.

The second thing you should know is that sugar is not necessarily bad for you.

The naturally occurring sugars in fruits and vegetables, for example, are part of a healthy diet.

Added sugars, on the other hand, are a different story.

The Food & Drug Administration (FDA) recommends that no more than 10 percent of your daily calorie intake come from Added Sugars.

This is because eating too many Added Sugars can increase your risk for heart disease and diabetes.

According to the FDA, “sugar-free” means that one serving of food contains less than 0.5 grams of Total Sugars.

Just because a protein powder is sugar-free does not make it good for you, however.

There are many other factors that are just as, if not more important than sugar content.

The ingredients in your protein powder, for example, are much more important than the amount of sugar.

In fact, many would argue that a protein powder with a few grams of sugar is better for you than a sugar-free protein powder sweetened with artificial sweeteners.

Why Should I Avoid Artificial Sweeteners and Sugar Alcohols?

Sugar-free does not mean healthy.

In fact, in many cases, sugar-free protein powders are actually worse for you.

In order to reduce the sugar content of their products and make them appealing to health-conscious customers, many companies turn to artificial sweeteners like sucralose and sugar alcohols like erythritol.

Just a pinch can be used to achieve the same amount of sweetness as several tablespoons of sugar, which seems like a hack until you learn about the dangers of artificial sweeteners.

• Artificial sweeteners can increase the risk of glucose intolerance (Nature, 2014), which is a precursor for pre-diabetes and diabetes.
• Certain sugar alcohols have been linked to an increased risk for heart attacks and stroke (Nat Med, 2023).
• Both artificial sweeteners and sugar alcohols have been shown to cause gut dysbiosis (Adv Nutr, 2019), which is a leading driver of inflammation and linked to the onset and development of many chronic diseases.

And this is only the tip of the iceberg; there are many more side effects and drawbacks linked to sugar substitutes.

If you think about it, you are probably better off just sticking to sugar – in moderation of course.

For the record, the only sugar substitute we feel comfortable using is monk fruit.

Learn more about why we love monk fruit.

What Is the Best Sugar-Free Protein Powder?

We make the best sugar-free protein powders from a short list of simple ingredients.

Our ingredients

egg whites

NOT our ingredients

• acacia gum

• acesulfame potassium

• artificial flavors

• carrageenan

• erythritol

• guar gum

• inulin

• maltodextrin

• 'natural' flavors

• silica

• soy lecithin

• sucralose

• xanthan gum

• xylitol

Both our unflavored Collagen and unflavored Egg White protein powders are sugar-free.

They are also super versatile and can be added to smoothies, oatmeal, and other high protein recipes.

And if you cannot eat eggs or collagen, check out our unflavored Vegan Almond Protein Powder

It has just 1 gram of naturally-occurring sugar per serving.

Is Sugar-Free Protein Powder Suitable for People With Diabetes?

Sugar-free protein powders can be an excellent option for people with diabetes as they help control sugar intake and manage blood glucose levels.

Always check with your healthcare provider before making any significant changes to your diet, however.

Is Sugar-Free Protein Powder Good for a Keto or Low-Carb Diet?

Yes, many sugar-free protein powders are suitable for keto or low-carb diets.

Just be sure to choose a product that is not only free from sugar but also low in carbohydrates, as some protein powders contain added starches.

Sources

1. Nature (Nature). Artificial sweeteners induce glucose intolerance by altering the gut microbiota. 2023.
2. Nature Medicine (Nat Med). The artificial sweetener erythritol and cardiovascular event risk. 2023.
3. Advances in Nutrition (Adv Nutr). Effects of Sweeteners on the Gut Microbiota: A Review of Experimental Studies and Clinical Trials. 2019.

Editorial Guidelines

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This article was written by a Registered Dietitian and reviewed by a Physician Assistant. We rely on peer-reviewed research and trusted medical sources, and regularly update our content to ensure accuracy and clarity.