Ensure is not sugar free. The company itself confirms this directly on its website: “Ensure products are not sugar-free.” However, the sugar content varies dramatically across the product line, from 23 grams in the Original shake down to just 1 gram in Ensure Max Protein.
Sugar Content Across Ensure Products
Ensure Original, the most widely recognized version, contains 23 grams of total sugar per 8-ounce bottle, with 22 grams of that being added sugar. That’s roughly the same amount of sugar as a fun-size candy bar. The carbohydrate count is similarly high at 33 grams per serving.
Ensure Max Protein sits at the opposite end of the spectrum with just 1 gram of sugar per serving and 30 grams of protein. If you’re specifically looking for a low-sugar option within the Ensure lineup, this is the closest you’ll get. It’s not technically sugar free by FDA labeling standards (which require less than 0.5 grams per serving), but 1 gram is close enough that many people treat it as functionally negligible.
Some international markets carry a product called Ensure Low Sugar, which contains 1.75 grams of sugar per 100 milliliters. This isn’t widely available in the United States.
What Sweeteners Replace the Sugar
In the lower-sugar Ensure products, artificial or non-nutritive sweeteners do some of the heavy lifting for taste. The original version relies primarily on corn syrup and added sugars for sweetness and calories, since it’s designed as a calorie-dense meal supplement for people who aren’t eating enough. The Max Protein version uses a combination of sweeteners to keep the sugar count at 1 gram while still tasting palatable.
This is an important distinction: Ensure Original is high in sugar by design. It’s formulated to deliver calories quickly to people who are underweight, recovering from illness, or struggling to eat solid food. The sugar isn’t an oversight. It’s part of the product’s purpose.
If You’re Managing Blood Sugar
Ensure products are not designed for people with diabetes. Abbott Nutrition, the company behind Ensure, makes a separate product line called Glucerna that’s specifically built for blood sugar management. Glucerna contains a slow-digesting carbohydrate blend and delivers only 16 grams of carbs per 8-ounce serving, compared to 33 grams in Ensure Original. It also has no specific glycemic control features listed for Ensure, while Glucerna is formulated around a low-glycemic carbohydrate blend.
That said, Abbott notes that Ensure products can fit into a diabetes meal plan if you account for the carbohydrates and monitor your blood sugar response about two hours after drinking one. This applies more realistically to the Max Protein version (with its 1 gram of sugar) than to the Original. If blood sugar is your primary concern, Glucerna is the product Abbott actually recommends for that job.
Choosing the Right Version for Your Goals
Your reason for considering Ensure determines which version makes sense. If you’re trying to gain weight or replace meals you’re unable to eat, the Original’s 23 grams of sugar come packaged with the calories and nutrients you need. Avoiding sugar in that context may work against you.
If you’re drinking Ensure primarily for the protein and want to minimize sugar, Ensure Max Protein at 1 gram of sugar and 30 grams of protein per bottle is a substantially different nutritional profile from the Original. It won’t spike your blood sugar the way the Original will, and it fits more easily into a lower-carb eating pattern.
If you need a nutritional shake and have diabetes or prediabetes, skip the Ensure line entirely and look at Glucerna, which was engineered from the ground up to minimize blood sugar response. The difference isn’t just about having less sugar. Glucerna uses a different type of carbohydrate that digests more slowly, which matters more for blood sugar stability than the raw gram count alone.