Logo
Archive
Login
Subscribe
Logo
  • Home
  • Posts
  • Plain Pasta Raised My Blood Sugar 62 Points

Pasta night.

Yesterday was World Pasta Day. And I'm guessing you didn't know that was a thing.

I didn't either, until last year. But here we are. October 25th. The one day when the whole world agrees that a bowl of noodles is worth celebrating.

I celebrated with a glucose monitor on my arm and one cup of plain spaghetti.

I wanted to answer a simple question. What does a regular bowl of pasta do to your blood sugar when you eat it the way most people do? No hack, no side salad. Just spaghetti, jarred marinara, and a fork.

Here's what happened.

Regular Spaghetti (1 Cup + Marinara)
Peak glucose spike
+62
   
mg/dL above fasting
Start
86
mg/dL · 0 min
Peak ⚡
+62
mg/dL · 35 min
Crash ↓
78
mg/dL · 110 min
Source: Continuous glucose monitor (Libre 3)

That bowl of spaghetti raised my blood sugar about 62 points in 35 minutes.

Then it dropped fast. By the two-hour mark, I was below where I started… and standing in front of the fridge.

Sound familiar?

That crash is the part nobody talks about. Your blood sugar goes up, your body overreacts with insulin, and two to four hours later you're hungry again.

My wife asked why I was eating crackers at 9 PM. I told her it was for science.

This is one person's experiment, not medical advice. Everyone's body responds differently.

Now here's what makes this interesting.

Pasta has a lower glycemic index than most people think. The University of Sydney's database puts white spaghetti at about 49 out of 100. White rice is up around 73. White bread is 75.

Pasta is made from semolina, a hard wheat. That dense structure means your body absorbs the starch more slowly.

So why did it still raise my blood sugar 62 points?

Two reasons.

First, one cup of cooked spaghetti has about 43 grams of carbohydrate and just 2.5 grams of fiber. In other words, there's a lot of starch and very little to slow it down.

And most of us don't eat just one cup.

Second, your body matters as much as the food. A study from Stanford Medicine, published in Nature Medicine last year, tracked 55 people eating pasta and other carbs while wearing glucose monitors. The people who were insulin resistant had the biggest blood sugar rises from pasta. The people with normal insulin function had smaller spikes.

The same bowl of pasta raised one person's blood sugar significantly more than another's.

It's revealing.

But here's the good news. You can change the outcome without changing the food.

Fatal heart attack at 71.

Her father took statins for 9 years.

Every visit he told his doctor the muscle pain was getting worse.

Every visit the doctor said: "That's normal."

He died of a heart attack at 71.

Cholesterol… Perfect.

Drug… Worked exactly as designed.

But he died anyway.

Fatal heart attack at 71

His daughter is a heart health researcher. That funeral was the day she started asking the questions her industry didn't want her to ask.

What she found has a name.

Almost no doctor screens for it. Almost no patient has heard of it.

She finally said it on camera:

If your parents took statins, or you do, or someone you love does…

Please watch this in the next 20 minutes before it’s taken down

P.S. Watch her face when she gets to the part about her father. She's not a person who shows emotion. It still gets her → Almost no doctor screens for this

● Meanwhile… The Hack

I ran the test again. Same spaghetti. Same cup.

Three changes.

First, I cooked it al dente. One minute less than the package said. The American Diabetes Association notes that al dente pasta has a lower glycemic index than soft-cooked pasta, because the firmer structure slows down how fast your body breaks the starch into sugar.

Second, I ate a small salad and grilled chicken before the pasta.

A 2015 study in Diabetes Care, out of Weill Cornell, found that eating vegetables and protein before the carbs lowered blood sugar about 37% at the one-hour mark. Same food, same calories. Just a different order.

Third, I used last night's leftover pasta. Cooked, cooled in the fridge, reheated.

Researchers at the University of Surrey found that this simple step cut the blood sugar rise by roughly half. When starch cools, some of it turns into resistant starch. Your body handles resistant starch more like fiber. In other words, it passes through without raising blood sugar the same way.

I don't know if these three changes would cut your rise in half, too. The studies are strong, but every body is different.

Still, the direction is clear.

Three small changes. Same dinner.

🍝
Plain Pasta
+62
mg/dL spike
✅
Hacked Pasta
+28
mg/dL spike
Same Pasta: Before and After the Hack
Regular spaghetti (as-is)
+62
   
Al dente + salad first + reheated
+28
   
mg/dL above fasting
Source: Continuous glucose monitor (Libre 3)

Plain spaghetti… +62 points.

The hacked version… +28.

Less than half.

And my family didn't notice a thing.

⏱
Cook al dente
Set a timer for one minute less than the package says. The pasta should still have a slight bite in the center. That firmness means slower digestion.
🥗
Eat protein and vegetables first
A salad, grilled chicken, roasted broccoli. Give yourself five to ten minutes before you start the pasta. This gives your body a head start on the protein and fiber.
❄
Cool and reheat when you can
Cook pasta tonight, refrigerate it, reheat it tomorrow. The resistant starch forms during cooling and survives reheating. Leftovers are your friend.
🥧
Add fat to the sauce
Olive oil, pesto, or cheese slows digestion. Plain pasta with nothing on it is the worst case for your blood sugar.

● The Bigger Picture

Pasta gets blamed more than it deserves.

A bowl of spaghetti cooked at home, with a good sauce and some vegetables on the side, is not the worst carb on your plate. Not even close.

But the processed versions? Those are a different story.

🍝
Restaurant fettuccine Alfredo
"It's just one plate"
⚡ Spike
+45
mg/dL
🍜
Instant ramen noodles
"Just a quick bowl"
⚡ Spike
+60
mg/dL
🧀
Boxed mac and cheese
"Made with real cheese"
⚡ Spike
+68
mg/dL

The pattern is the same. Softer noodles, bigger bowls, more processed ingredients, and nothing green anywhere near the plate.

We don't have to give up pasta night. We just have to build a better one.

 

"You don't have to break up with pasta. You just have to stop serving it alone."

Stay steady

Keep Reading

View more
caret-right

Real foods. Real data. Real surprises.

A daily newsletter written by someone wearing a continuous glucose monitor 24 hours a day.

Home

Archive

Privacy Policy

Terms of Use

© 2026 The Glucose Effect.