Key findings
- 1Ensure is a complete-nutrition formula of the kind used in clinical nutrition, built from isolated ingredients rather than whole foods
- 2Corn maltodextrin, the primary ingredient, is corn starch broken down into short glucose chains, not a whole food
- 3Of the 25 Ensure products we score, all 25 are Level 4 (ultra-processed)
What goes into Ensure products?
Ensure is a liquid nutrition formula, and its ingredient list reads like one. Corn maltodextrin (the first ingredient by weight) is produced by acid or enzyme hydrolysis of corn starch, breaking it into short glucose chains. The second ingredient is sugar. Together, maltodextrin and sugar provide the caloric base. Milk protein concentrate supplies the protein, while canola and corn oils provide fat. The remainder is a vitamin and mineral premix of synthetic nutrients added to create a "complete" nutritional profile. Ensure is not a food that has been processed; it is a formula assembled from isolated industrial ingredients.
How 25 ensure products break down
Share of products at each processing level, in our analysis.
Ensure brand comparison
From least to most processed in our database.
How to read a ensure label
- 1
Corn maltodextrin as the first ingredient means a processed starch derivative (not corn, not a whole food) makes up the largest portion by weight
- 2
The vitamin and mineral list is a synthetic premix; these are the same compounds used in vitamin pills, not nutrients from the food itself
- 3
Check the sugar content: Ensure Original contains 15g sugar per 8oz bottle, on top of the maltodextrin
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Frequently asked questions
Is Ensure healthy for adults?
That is a question for a clinician rather than for a processing score. What the product is: a formula of corn maltodextrin, sugar, milk protein concentrate, oils, and a synthetic vitamin and mineral premix. A whole food meal or smoothie made from recognizable ingredients is far less processed.
What is corn maltodextrin in Ensure?
Corn maltodextrin is produced by breaking down corn starch with acids or enzymes into short glucose chains. It is a highly processed carbohydrate. In Ensure, it serves as the primary calorie source because it is easily digestible and dissolves smoothly in liquid.
Is Ensure better than a protein shake?
Ensure and protein shakes serve different purposes. Ensure is a complete nutrition formula (calories, protein, fat, and a vitamin and mineral premix). Protein shakes focus on protein delivery. Both are built from isolated ingredients, and Ensure usually lists more of them, with a higher sugar and maltodextrin load. Neither is a whole food.
Why do doctors recommend Ensure?
Whether Ensure suits a particular person is a question for their clinician, and the answer depends on the patient. What a processing score can say is narrower: Ensure is a liquid formula assembled from isolated ingredients, and each bottle's product page shows its own score.
Is Ensure the same as a meal replacement?
Ensure is a nutrition formula with a broad vitamin and mineral premix. Consumer meal replacements like SlimFast are built around fewer calories per serving. Both are assembled from isolated proteins, sweeteners, oils, and a vitamin premix. Neither is equivalent to eating actual food.