Key takeaways

• Glucerna is the only one of these three formulated specifically for blood sugar management. Boost Glucose Control is the other major diabetes-specific option.
• Per 8 fl oz, Glucerna Therapeutic Nutrition has 26 g of carbohydrate and 7 g of sugars. Ensure Original Therapeutic Nutrition has 41 g and 23 g. That is the whole comparison in one line.
• Ensure Clear has the most carbohydrate of any product here at 52 g, because it is a fat-free clear liquid built for pre-surgical and bowel-prep diets, not for blood sugar control.
• The therapeutic and retail versions of the same brand are different formulas. Most comparison articles online quote retail numbers.
• None of these drinks is appropriate for treating low blood sugar.

Most articles comparing these products describe one as having "significantly higher carbs" and leave it there. That is not useful when you are standing in front of a shelf. Below are the actual label numbers, pulled from manufacturer specification sheets, for the products we stock.

The numbers, side by side

All values are per 8 fl oz serving, the standard carton or bottle size.

Product	Calories	Total carb	Total sugars	Fiber	Protein	Fat
Boost Glucose Control (not stocked)	190	16 g	4 g	3 g	16 g	7 g
Glucerna Therapeutic Nutrition Shake	220	26 g	7 g	4 g	10 g	9 g
Boost Original	240	37 g	15 g	0 g	10 g	6 g
Ensure Original Therapeutic Nutrition Shake	250	41 g	23 g	3 g	9 g	6 g
Ensure Clear Therapeutic Nutrition (apple)	240	52 g	32 g	0 g	8 g	0 g

Read the carbohydrate column top to bottom. That single column is the reason a dietitian recommends one of these and not another.

The detail almost every comparison article gets wrong

Abbott sells two different Glucerna shakes and two different Ensure shakes. The retail versions sold in grocery stores and the therapeutic nutrition versions sold through medical suppliers are not the same formula.

Retail Glucerna Original Shake has 180 calories, 10 g protein, 4 g fiber, and 4 g sugars per 8 fl oz. The Glucerna Therapeutic Nutrition Shake we stock has 220 calories, 26 g carbohydrate, and 7 g sugars. The therapeutic version is denser, because it is designed for people who are underweight or at nutritional risk and still need blood sugar consideration.

If a dietitian or discharge planner gave you a list number rather than a brand name, that is why. Match the list number, not just the brand. Ours are #64922 and #64929 for Glucerna, #64931 for Ensure Original, and #64903 and #64900 for Ensure Clear.

Glucerna Therapeutic Nutrition Shake

Made by Abbott and formulated with a slowly digested carbohydrate blend intended to blunt the post-meal glucose rise compared with high-glycemic carbohydrates. At 26 g of carbohydrate and 7 g of sugars, it carries roughly 40 percent less sugar than Ensure Original in the same serving size, plus 4 g of fiber and 10 g of protein.

It is intended as an oral supplement used alongside a diabetes meal plan, not as sole-source nutrition. In stock in vanilla and rich chocolate.

Ensure Original Therapeutic Nutrition Shake

Built for a different problem. Ensure Original Therapeutic Nutrition is designed for people with malnutrition, involuntary weight loss, or general nutritional risk, and it is approved for interim sole-source feeding under medical supervision. That is why the calories and carbohydrate run higher: the goal is to get energy into someone who is not eating enough.

At 41 g of carbohydrate and 23 g of sugars per 8 fl oz, it is not a blood sugar management product, and it should not be treated as one. It also carries 320 mg of plant-based omega-3 ALA and 27 vitamins and minerals. In stock in vanilla. We also have a detailed guide to this product.

Ensure Clear Therapeutic Nutrition

Often misunderstood. Ensure Clear is fat-free and juice-like rather than creamy, which makes it suitable for clear-liquid diets, pre- and post-surgical nutrition, bowel prep, and fat-malabsorption or fat-restricted diets. It has 8 g of whey protein and no fat at all.

The tradeoff is carbohydrate. At 52 g per serving with 32 g of sugars, it has the highest carbohydrate load of anything on this page. Someone reaching for it because it "seems lighter" than a creamy shake has the situation exactly backwards. In stock in apple and mixed berry.

Boost Original, and the Boost product people actually mean

Boost Original from Nestlé Health Science sits between the two Ensure products at 240 calories, 37 g carbohydrate, 15 g sugars, and 10 g protein. Nestlé reformulated it to cut sugars by roughly a quarter from the older formula, so older comparison charts online still list 20 g. In stock in rich chocolate and creamy strawberry.

Worth being direct: when people search for a diabetes-appropriate Boost, they usually mean Boost Glucose Control, which is a different product at 190 calories, 16 g carbohydrate, 4 g sugars, 3 g fiber, and 16 g protein. We do not currently stock it. If that is what your dietitian specified, buy the one they specified rather than substituting Boost Original, which has more than twice the carbohydrate.

If protein is the priority

Two options in stock go a different direction, trading calories for protein:

• Ensure High Protein Shake: 160 calories and 16 g protein per 8 fl oz, with 2 g of fat. Abbott positions this as 75 percent more protein than retail Ensure Original at fewer calories.
• Ensure Max Protein Shake: 150 calories, 30 g protein, and 1 g of sugar per 11 fl oz. The lowest sugar option we carry by a wide margin.

These are supplements for protein intake and muscle maintenance, not complete meal replacements in the way the therapeutic shakes are.

How to actually choose

Work from the goal backward, not from the brand forward.

Managing blood sugar and eating adequately. Glucerna Therapeutic Nutrition, or Boost Glucose Control if that is what was specified.

Losing weight involuntarily, poor appetite, no diabetes. Ensure Original Therapeutic Nutrition or Boost Original. Higher calories are the feature here, not the flaw.

Clear-liquid, pre-surgical, or fat-restricted diet. Ensure Clear, and account for the carbohydrate load if blood sugar matters.

Protein intake without many calories. Ensure Max Protein, or Ensure High Protein.

Both diabetes and significant weight loss. This is where people get stuck, because the two goals pull in opposite directions. It is a real clinical question and worth a conversation with a registered dietitian rather than a guess off a comparison table.

Reading these labels against a meal plan

If you count carbohydrate in exchanges, one carb choice is about 15 g. Glucerna Therapeutic at 26 g is close to two carb choices. Ensure Original at 41 g is closer to three. Ensure Clear at 52 g is roughly three and a half. That framing tends to make the difference concrete faster than the raw grams do.

A few practical points that apply to all of them:

• These drinks raise blood glucose, because all food and drink containing carbohydrate does. The diabetes-specific formulas moderate the rise; they do not eliminate it.
• None of these is a treatment for hypoglycemia. The carbohydrate is deliberately slow-releasing, which is the opposite of what a low blood sugar needs. Use your usual fast-acting glucose source.
• Meal replacement drinks are a supplement to real food, not a substitute for it, unless a clinician has specifically directed sole-source use.
• Formulations change. The numbers here were checked against current manufacturer specification sheets, but the carton in your hand is always the final authority.

Frequently asked questions

Which is better for diabetes, Glucerna or Ensure?

Glucerna, clearly, if blood sugar is the concern. Glucerna Therapeutic Nutrition has 26 g of carbohydrate and 7 g of sugars per 8 fl oz against Ensure Original Therapeutic Nutrition's 41 g and 23 g. Ensure is formulated for weight maintenance and nutritional repletion, not glucose management.

Is Boost or Ensure better for a diabetic?

Neither Boost Original nor Ensure Original is designed for diabetes. Boost Original has less carbohydrate than Ensure Original, 37 g versus 41 g, but both are well above the diabetes-specific formulas. Boost Glucose Control at 16 g of carbohydrate is the relevant Boost product for that question.

How many of these can I drink per day?

That depends on your calorie and carbohydrate targets, your other meals, and what the product is being used for. One or two daily is common, but this is genuinely a question for your physician or dietitian rather than a number to take from an article.

Can I use these to bring up a low blood sugar?

No. They are formulated for slow carbohydrate release and will not raise blood glucose fast enough. Treat lows with your prescribed fast-acting source.

Why do the numbers here differ from what I see elsewhere?

Because most articles quote the retail grocery-store formulas while medical suppliers sell the therapeutic nutrition versions, which are different products with different labels. The numbers above are for the therapeutic SKUs we actually stock.

Does insurance cover nutritional supplement drinks?

Oral nutrition supplements are generally not covered by Original Medicare when taken by mouth. Coverage may exist under Medicaid or a Medicare Advantage over the counter benefit, and rules differ for tube-fed enteral nutrition. Check with your plan.

Shop nutrition supplements

Browse the full Nutritional Supplies collection. If you are also monitoring blood sugar, see our Diabetes Care collection and McKesson Quintet AC test strips.

We ship nationwide with delivery in 2 to 3 days. Not sure which product matches what your dietitian wrote down? Call (513) 988-8550 or send us the details and we will match the list number for you.

ABD Medical
270 Regency Ridge Drive, Suite 104, Dayton, Ohio 45459
Phone: (513) 988-8550 | Email: info@abdmed.com

See also our overview of medical equipment and supplies in Dayton.

Sources

• Abbott Nutrition, Ensure Original Therapeutic Nutrition Shake product information
• Abbott Nutrition, Ensure Clear Therapeutic Nutrition product information
• Nestlé Health Science, BOOST Original and BOOST Glucose Control product information

---

This article is general nutrition information, not medical advice, and it is not a substitute for guidance from your physician, registered dietitian, or diabetes care team. Do not start, stop, or change a nutrition supplement, or use any product as sole-source nutrition, without talking to a clinician who knows your situation. Nutrition information was taken from manufacturer specification sheets current at the time of writing; always read the label on the product you receive.