Eat Carbs Last: How Meal Order Can Soften Blood Sugar Spikes, From the 2015 Trial to a 2026 Study

By SmashMeals Editorial · Published 2026-10-21 · Updated 2026-10-21

What if you could lower the blood sugar spike from a meal without changing the meal? That is the idea behind meal sequencing, eating vegetables, protein and fat before carbohydrates. A small human study made it famous in 2015, and an October 2026 study in mice helps explain how it might work.

This guide is general information, not medical advice. If you have diabetes or take insulin or other glucose-lowering medicines, talk with your care team before changing how you eat.

The human study that started it

In 2015, researchers at Weill Cornell Medicine, led by Alpana Shukla, M.D., with senior author Louis Aronne, M.D., published a pilot study in Diabetes Care. Eleven adults with obesity and type 2 diabetes ate the same meal on two days a week apart: once with the carbohydrates first, and once with the protein and vegetables first and the carbohydrates 15 minutes later.

Insulin levels were also significantly lower. Aronne suggested clinicians could say "eat this before that" instead of "don't eat that." The study was very small, and he said more work was needed.

The new mouse study

In October 2026, a Kyoto University team published in Diabetes a study in mice. Giving olive oil 15 minutes before glucose produced a smaller early blood sugar rise than giving it after. The oil slowed stomach emptying and triggered an early rise in the gut hormones GLP-1 and GIP, and in glucagon. Blocking either glucagon or GLP-1 alone did not remove the effect; blocking both did.

Corresponding author Daisuke Yabe said "Meal-sequencing is appealing because it merely changes how a meal is eaten." These were mice, and the authors say clinical studies are needed before the findings guide care in people.

Why it might work

The best current explanation is timing in the gut:

• Protein and fat slow stomach emptying, so carbohydrates reach the intestine more gradually.
• They trigger gut hormones, including GLP-1, the same hormone GLP-1 medicines mimic, which helps regulate insulin and appetite.
• Fiber from vegetables adds bulk and slows absorption.

How to try it

No special foods are needed. The order is the tool.

1. Start with vegetables: salad, roasted vegetables or a side of green beans.
2. Then protein: chicken, fish, eggs, beef, tofu or beans.
3. Finish with starch: rice, potatoes, bread, pasta or fruit.

At a buffet or holiday table, that might mean taking vegetables and turkey first and coming back for potatoes and rolls. At home, it can be as simple as eating the meat and vegetables off your plate before the rice.

What it is not

• Not a substitute for medicine. If you take glucose-lowering medicines, do not change doses without your clinician.
• Not permission for unlimited carbs. Portion and total intake still matter.
• Not proven in everyone. The best human evidence is small. People without diabetes may see smaller effects.

If you use a continuous glucose monitor, try the same meal both ways and compare. It is a simple experiment you can run yourself.

Plates that make it easy

A meal with a real portion of protein and vegetables built in makes "carbs last" natural. SmashMeals cooks portioned meals in a dedicated gluten-free kitchen and posts nutrition, including carbohydrates, for each one. See our diabetic-friendly meals, read our prediabetes plate method guide, and order this week's meals.