A steady glucose monitor helps individuals monitor their blood sugar spikes and dips.
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By all measurements, Judy Freeman, age 76, is in implausible well being. She would not have diabetes or coronary heart illness. She’s not obese. She stays lively.
“I attempt to stroll a minimum of 4 or 5 instances per week,” says Freeman, who’s a well known potter in Alpine, Texas. “I additionally work about 20 hours within the studio.”
However prior to now 12 months or so, Freeman hasn’t felt like herself. She’s been extra drained and sluggish. And he or she has had extra hassle shedding a bit of further weight. “I try to I am unable to lose it,” she says.
So Freeman determined to experiment with a brand new expertise for a number of weeks: a steady glucose monitor.
It is a small patch that inserts a needle into your pores and skin. The machine estimates your blood sugar each couple of minutes and sends the worth to an app in your telephone. You may monitor how varied meals you eat alter your blood sugar.
Freeman puzzled if the additional details about her blood sugar would possibly give her perception into why she felt so sluggish and caught in her weight reduction.
Judy Freeman is an artist in Alpine, Texas. She wished to know if monitoring her blood sugar may enhance her well being.
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Michaeleen Doucleff/For NPR
On the primary day, she uncovered an enormous clue: About two hours after lunch, her blood sugar nosedived beneath her baseline ranges.
Dips set off overeating
Research have proven conclusively that these screens enormously assist individuals handle diabetes. However in 2024, the FDA permitted the primary steady glucose screens for individuals with out diabetes. Now, two corporations, Dexcom and Abbott, promote and market the units to anybody who needs to trace their blood sugar. They value about $50 and final for a few weeks.
However scientists are nonetheless attempting to determine if — and the way — these screens may assist individuals with out diabetes. Can the information encourage individuals to eat a more healthy weight-reduction plan by serving to them learn the way meals impacts their our bodies?

One of many scientists main this effort is Sarah Berry, a nutritionist at King’s School London. She’s additionally chief scientist on the firm Zoe, which sells customized vitamin plans that incorporate these units.
In collaboration with Massachusetts Common Hospital and Stanford College, Berry and her colleagues led two giant research by which 1000’s of individuals with out diabetes put on steady glucose screens whereas they eat tens of 1000’s of meals.
After analyzing all of their knowledge, Berry says one discovering stands out: “A giant proportion of persons are what we name dippers,” she says.
For those who’re a dipper, your blood sugar generally acts in a particular means: After consuming carbohydrates, it rises rapidly, after which about two to a few hours later, it generally plummets low, beneath your baseline, or fasting, degree.
“So you may have this massive improve adopted by this massive crash,” Berry says. “Not everybody will get these dips, however we see that fairly a excessive proportion of individuals do.”
These dips can set off overeating, their research discovered, so it might make it more durable to drop a few pounds.
“In case you are dipping, then you definately really feel extra hungry extra rapidly, and on common you are likely to eat 80 energy extra on the subsequent meal and 320 energy extra over a complete day,” she says.

However consuming extra wasn’t the one downside with dips. Berry’s group has discovered that the sugar crashes additionally correlated with an individual’s temper. Throughout a dip, individuals tended to really feel much less alert and extra fatigued, she and her colleagues reported within the journal Nature Metabolism.
These conclusions line up with earlier research on individuals with diabetes, says Dalia Perelman, who’s a analysis dietitian at Stanford College and wasn’t concerned on this analysis.
“When your blood sugar is excessive, individuals are typically torpid, fatigued, and thirsty,” Perelman says. “You are identical to, ugh.”
When your blood sugar is low, you are jittery. You may have coronary heart palpitations. And also you turn out to be tremendous hungry. “Low blood sugar offers your physique very sturdy alerts,” she says. “You actually really feel horrible,” which brings us again to Judy Freeman in Alpine, Texas.
The primary day Freeman wore the glucose monitor, she ate lunch as standard. About two hours later, she began to really feel horrible. “I had this actually sinking feeling. It was a form of anxiousness or melancholy. I felt like if I do not rise up, I am simply going to cease respiration and die. It was so overpowering,” Freeman says.
When Freeman glanced on the monitor, she may hardly imagine what she noticed: “My blood sugar had shot up in some unspecified time in the future, after which it plummeted all the way down to the bottom level.”
This sinking feeling wasn’t new to Freeman. She’s had it now and again. “I simply by no means, ever thought it was in any means correlated with what I ate or something like that.“
In case you are involved that your blood sugar could also be fluctuating wildly and also you wish to even issues out, listed below are three issues you’ll be able to attempt:
1. Put some garments on these carbs
Do not eat meals and snacks that consist principally of carbohydrates, Perelman says. “Do not eat bare carbs.”
As a substitute, eat them with protein and wholesome fat. Which means oils from greens, seeds and nuts, but in addition fat from fish. So add eggs to breakfast, canned fish for lunch or tofu for dinner.

On prime of that, add extra fiber — tons extra. For that, the go-to ingredient is beans, says nutritionist Mindy Patterson on the Texas Lady’s College. “You actually must eat beans to get sufficient fiber in your weight-reduction plan,” she says. (Chia seeds are one other nice supply of fiber.)
“Fiber and protein collectively put a velocity bump in your digestion,” says scientific nutritionist Karen Kennedy. “They actually stabilize your blood sugar.”
2. Sprinkle the carbs all through the day
To stop dips, you need your intestine to slowly drip carbs into your blood, not douse it with a deluge of sugars, Perelman says. So do not eat a bunch of carbohydrates all at one meal.
For stopping dips, “it would not matter what number of carbs you ate all through the day,” she says. “It issues what number of carbs you’ve got had at every meal.”
3. Take note of what you eat first at a meal
With meals, order issues, too. Eat the protein, fiber and fats first at a meal and the carbs finalKennedy says.

Say you are having a steak, salad and baked potato for dinner. “For those who eat the salad and the steak first, after which the potato, you may see that you do not have as a lot of a spike in blood sugar or as a lot of a drop afterwards,” she says.
In case your blood sugar retains a extra even keel, then your temper and starvation will do the identical.
And this is the nice half: You needn’t purchase a glucose monitor to determine this out, says Sarah Berry at King’s School London. Merely take note of how you’re feeling about two hours after a meal. For those who get moody, anxious or tremendous hungry, you are most likely a dipper.
Edited by Jane Greenhalgh

