Skip the Carb Counting? New System Shows Promise

What Was Studied and Why It Matters

For most people living with type 1 diabetes, every meal comes with a math problem. Carbohydrate counting — estimating how many grams of carbs are on your plate and calculating the right insulin dose — is the standard approach to managing blood sugar after eating. It works, but it's mentally exhausting and can chip away at quality of life over time.

Researchers in Montreal wanted to know: what if you could skip the math? A team at McGill University Health Centre tested a new closed-loop (artificial pancreas) system that pairs insulin with a drug called pramlintide. Instead of counting carbs, users simply press a button to announce a meal in a general size category — small, medium, or large. The system handles the rest.

What the Study Found

The trial enrolled 30 participants — 15 adults and 15 adolescents — each of whom tried three different approaches for 14 days each:

• Insulin + pramlintide with simple meal announcements (no carb counting)
• Insulin + placebo with carb counting (standard approach)
• Insulin + placebo with simple meal announcements (no pramlintide, no carb counting)

The key question on blood sugar: did the pramlintide-plus-simple-announcement system keep glucose in a healthy range (3.9–10.0 mmol/L) as well as carb counting did? The answer was yes — it was non-inferior, meaning it held its own without significantly worsening control. Participants spent a comparable amount of time in their target glucose range.

However, the second goal — reducing emotional burden and diabetes-related distress — showed no statistically significant improvement. Skipping carb counting didn't measurably lower stress scores on the Diabetes Distress Scale.

On the downside, nearly half of participants using the pramlintide system reported mild nausea or other gastrointestinal side effects, compared to just 7% on the standard approach. No serious adverse events occurred in either group.

What This Means for Real Patients

This research is early but encouraging. If you or a family member finds carb counting burdensome — a common complaint, especially among teens — a system like this could eventually offer a meaningful alternative without sacrificing glucose control.

It's worth noting that pramlintide is already an approved medication used alongside insulin, and closed-loop pump systems are becoming more accessible. For people already using continuous glucose monitors and insulin pumps, keeping reliable supplies on hand is critical. MDS Diabetes carries a wide range of CGM sensors, pump consumables, and diabetes management supplies to support technology-assisted care.

The researchers are clear that longer, larger studies are needed before this approach becomes standard practice. But the signal is promising: simpler meal management may be possible without giving up the blood sugar control that keeps complications at bay.

Bottom Line

A new insulin-plus-pramlintide closed-loop system allowed type 1 diabetes patients to replace detailed carbohydrate counting with simple meal size announcements — and blood sugar control remained comparable to the traditional method. Emotional burden scores didn't improve significantly, and mild stomach-related side effects were more common. Larger trials are needed, but this points toward a future where mealtime diabetes management could be simpler for both adults and teens.