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  • Al Dente, Cooled, Paired: How to Cut Your Blood Sugar Rise in Half

Pasta night lives.

That was the question all week. And after five days, a glucose monitor, and more spaghetti than my wife thought was necessary… yes. With a few rules.

Something caught my eye while researching this series. The University of Sydney's glycemic index website featured a study earlier this year from a large trial in Spain called PREDIMED-Plus. Researchers followed about 5,700 older adults for two years. They found that people who swapped bread, rice, or potatoes for pasta lost more weight, and those who swapped bread trimmed their waists. The study was published in the Journal of the American Nutrition Association.

The reason is straightforward. Pasta has a lower glycemic index than most starchy carbs. The Sydney database puts white spaghetti around 49. White rice is 73. White bread, 75.

In other words, the sugar from pasta reaches your blood more slowly than from bread or rice.

But how you cook it, what you eat with it, and which pasta you choose… that's where the real difference showed up. I saw a 30-point gap on my glucose monitor this week. Same food. Different approach.

Here are the rules.

📌 This Week's Rules
✓
Cook pasta al dente. Firmer pasta slows down how fast your body breaks down the starch.
✓
Cool your pasta, then reheat it. Cooling creates resistant starch that your body absorbs more slowly, and reheating doesn't undo it.
✓
Eat vegetables and protein before the pasta. The fiber and protein slow down how fast your body absorbs sugar from the carbs that follow.
✓
Try chickpea or red lentil pasta. They have more protein and fiber, and they raised my blood sugar about half as much as regular spaghetti.
✓
Walk for 10 minutes after dinner. Even a short walk helps your muscles pull sugar out of your blood.

And here's how the numbers stacked up.

● The Scoreboard

🍝 Soft-cooked spaghetti (no pairing)
+60
   
🥟 Gnocchi
+60
   
🍚 Gluten-free rice pasta
+60
   
🌾 Whole wheat spaghetti
+42
   
🥗 Hacked spaghetti (al dente + cooled + paired)
+30
   
🫘 Chickpea pasta
+24
   
🟢 Red lentil pasta
+20
   

The story in those bars is clear. Cook it al dente, cool it, pair it with protein and vegetables, and the rise drops by half.

And gnocchi? That one surprised me. Potato plus flour, no fiber to slow things down.

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

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● Reader Mail

Question

Is gluten-free pasta better for blood sugar?

My Response

Not by default. I tested a rice-flour pasta this week and it raised my blood sugar about 60 points. That's about as much as regular spaghetti. Rice flour breaks down fast. Chickpea and lentil pastas happen to be gluten-free, and they raised my blood sugar far less. But that's because of the protein and fiber in the legumes, not the absence of gluten. Look at the ingredients, not the front of the box.

Question

Can I just walk after regular pasta instead of switching to lentil pasta?

My Response

Both help, and you can stack them. In my tests last week, a 10-minute walk after a pasta dinner cut the blood sugar rise by about a third. But the biggest drops I saw this week came from combining several changes: al dente, cooled, with vegetables and protein first. If you love your regular spaghetti, keep it. Build around it. You don't have to do everything at once.

Question

We do pasta night every Sunday. What's the one thing to change first?

My Response

Eat a side salad before the pasta. The fiber from the vegetables slows down how fast your body absorbs sugar from the carbs that follow. Nothing about the pasta has to change. Once that feels easy, try making extra pasta and putting it in the fridge for tomorrow's lunch. Cooling creates resistant starch, so the leftovers will raise your blood sugar less than the fresh pot.

● Next Week

We're putting breakfast cereal on trial. The boxes that say "heart healthy" on the front? I poured myself a bowl and wore my glucose monitor. The results are… interesting.

🔬
Mon
'Heart-healthy' cereal on trial
🛠
Tue
Turn cereal into a steadier bowl
🧠
Wed
3 'healthy' cereals: which spikes most?
🔄
Thu
Cereal+milk vs Eggs

Stay steady

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