A week of each
Cook jasmine one week and basmati the next. Your own curves will tell you more than our small groups.
We looked at Vively members who ate jasmine rice on its own while wearing a glucose sensor. Here is what happened, how it compares, and how to find out what it does to you.

Half of members rose between 0.9 and 2.7 mmol/L.
Short answer: Jasmine rice raised blood sugar by a typical 1.8 mmol/L in 56 Vively members who wore a continuous glucose monitor (CGM) and logged it on its own. The middle half of members rose between 0.9 and 2.7 mmol/L. Basmati's typical rise was lower at 1.5 mmol/L, but these are two of our smallest groups and the average curves point the other way, so we wouldn't call it a clear win.
When you eat carbohydrate, your body breaks it down into glucose and your blood glucose rises. That is normal, because glucose is your body’s main fuel. Insulin then moves it out of your blood and into your cells, and your level comes back down.
A big rise is sometimes followed by a dip below where you started. In a study of 1,070 people, those with bigger dips after breakfast felt hungrier sooner and ate more over the rest of the day.
Bigger, more frequent rises mean your body releases more insulin. If your cells stop responding well to it (insulin resistance), your body has to make even more. Insulin resistance usually builds for 10 to 15 years before a standard glucose blood test picks it up.
Studies of people without diabetes have linked higher glucose levels, including two hours after a sugary drink, with a higher risk of heart disease. Higher rises after meals are also often one of the first changes on the way to type 2 diabetes.
Glucose is meant to go up after you eat. What matters is your pattern over weeks: how high you go, how often, and how quickly you come back down. That pattern is personal, so measuring it beats guessing.
If you have diabetes or take medicine that lowers glucose, talk to your doctor before changing how you eat.
Jasmine and basmati are the classic rice comparison, so we checked both.

Typical rise 1.8 mmol/L. Middle half: 0.9 to 2.7.

Typical rise 1.5 mmol/L. Middle half: 0.7 to 2.4.
The middle half of members overlapped almost completely, and our average curves point the other way to the typical rises. With only 56 and 75 members, we can’t call a winner.
This one is yours to test. Cook a week of each and compare your own curves. That will tell you more than our small groups.
Test it on yourselfLine up 56 members from smallest to biggest typical rise after jasmine rice, then pick ten people evenly spaced along the line. Same food, very different curves.
barely moved, with a typical rise under 1.0 mmol/L
rose 2.5 mmol/L or more
Jasmine rice is a fragrant long-grain rice that cooks soft and slightly sticky. Rice that cooks sticky tends to have less of a starch called amylose, and starch with less amylose breaks down faster in digestion. Basmati has more amylose and cooks into firmer, separate grains.
This is one of our smaller groups (56 members). The average curve, from an even smaller group in the Sydney time zone, peaked lower than basmati's, the opposite of the typical rise. With numbers this small, neither result is reliable on its own.
Portion size, what you ate earlier, sleep, stress, movement and your menstrual cycle all change the curve too. That is why we built Vively around testing your own meals instead of handing out food lists.
Five quick rounds using our members’ data. How well do you know your jasmine rice?
Typical rise in mmol/L when each food was eaten on its own. Every food has at least 30 members behind it. Tap a food to see its page.
See all 38 foods on our glucose spikes page.
Averages only get you so far. These are the tests our members run with their sensors.
Cook jasmine one week and basmati the next. Your own curves will tell you more than our small groups.
Have half your usual serve of jasmine rice one day and a full serve another, then compare.
After the same meal, sit one day and take a 10-minute walk the next. Compare how high you go.
Wear a CGM with Vively and see the rise, the peak and the recovery for every meal you log. Then try a swap and compare the two curves side by side.
Get your CGM
For many people, yes. 56 Vively members wearing a CGM rose a typical 1.8 mmol/L after jasmine rice on its own. The middle half rose between 0.9 and 2.7 mmol/L.
Possibly basmati, but our data isn't clear. Basmati's typical rise was 1.5 mmol/L and jasmine's 1.8 mmol/L, yet the average curves showed basmati peaking higher. Basmati has more amylose, a starch that digests more slowly, so lab GI tests usually favour it. Testing both yourself is the best answer.
In our members, basmati had the lowest typical rise (1.5 mmol/L) and brown rice was next (1.6), but the basmati group is small. Pasta was lower than any rice at 1.3 mmol/L. Our guide to low GI rice covers more varieties, including Doongara.
There is no official cut-off for a spike in people without diabetes. In a 2019 study of healthy adults who wore CGMs, glucose stayed between 3.9 and 7.8 mmol/L for about 96% of the day. Rises after meals are normal. How high you go, how long you stay there and your pattern over weeks matter more.
We used meals logged in the Vively app by members wearing a CGM between January 2022 and October 2026, leaving out members who told us they have type 2 diabetes, and our own staff. The rise is the highest reading in the two hours after eating, minus the member’s average for the four hours before. If glucose fell, we counted the rise as zero. We took each member’s own median first, then the median across members. “On its own” means the food was the only item logged for that meal. The curves use members in the Sydney and Melbourne time zones, meals since January 2023 and each member’s three most recent meals of each kind. Data is de-identified and only shown when at least 30 members contribute. This is observational app data, not a controlled GI test, and portions vary.
This is observational data from real meals, not medical advice.