The truth lies in the table below.
Understanding how different foods affect blood sugar is crucial in managing it. The Glycemic Index (GI) acts like a speedometer to measure how fast carbohydrates raise blood sugar. GI is measured against pure glucose (GI = 100) or white bread. The higher the number, the more likely a food is to cause a blood sugar spike. Lower numbers mean gentler effects.
GI Categories
Low GI (≤ 55): Slow release, no panic after eating.
Medium GI (56–69): Enjoy moderately, occasional indulgence.
High GI (≥ 70): Rapid sugar spike, roller coaster for your blood sugar.
We’ve selected 60+ common foods with GI values to help you make smarter choices at the table.
I. Low GI Foods (GI ≤ 55)
| Food | GI Value |
|---|---|
| Apple | 36 |
| Apple juice | 41 |
| Banana | 51 |
| Barley | 28 |
| Cooked carrot | 39 |
| Chapatti | 52 |
| Chickpeas | 28 |
| Dark chocolate | 40 |
| Red dates | 42 |
| Ice cream[1] | 51 |
| Kidney beans | 24 |
| Lentils | 32 |
| Mango | 51 |
| Orange | 43 |
| Canned peach | 43 |
| Plantain | 55 |
| Rice noodles | 53 |
| Rolled oats | 55 |
| Skim milk | 37 |
| Soybeans | 16 |
| Soy milk | 34 |
| White pasta | 49 |
| Whole wheat pasta | 48 |
| Multigrain bread | 53 |
II. Medium GI Foods (GI 56–69)
| Food | GI Value |
|---|---|
| Cooked brown rice | 68 |
| Couscous | 65 |
| French fries | 63 |
| Millet porridge | 67 |
| Muesli | 57 |
| Pineapple | 59 |
| Popcorn | 65 |
| Potato chips | 56 |
| Boiled pumpkin | 64 |
| Regular soda (non-diet) | 59 |
| Boiled sweet potato | 63 |
| Wheat flake biscuits | 69 |
| Roti | 62 |
| Granola cereal | 64 |
| Instant oats | 64 |
| Raisins | 64 |
| Whole wheat pasta | 59 |
| Cane sugar (sucrose) | 60 |
| Sweet corn | 60 |
| Croissants | 67 |
III. High GI Foods (GI ≥ 70)
| Food | GI Value |
|---|---|
| Cornflakes | 81 |
| Instant oatmeal | 79 |
| Boiled potato | 78 |
| Instant mashed potatoes | 87 |
| Rice milk | 86 |
| Rice porridge | 78 |
| Rice crackers | 87 |
| Unleavened wheat bread | 70 |
| Watermelon[2] | 76 |
| White rice (cooked) | 73 |
| White bread | 75 |
| Whole wheat bread | 74 |
| Baguette | 83 |
| Cheese puffs | 70 |
| Pretzels | 84 |
| Fried corn chips | 71 |
| Sugary sodas | 77 |
| Roasted sweet potato | 71 |
| Jackfruit | 66 |
How to Master GI?
Breakfast: Pair rolled oats with skim milk, topped with nuts and berries — your blood sugar takes off steadily, not in a rollercoaster.
Lunch: Choose brown rice or whole wheat pasta, along with vegetables and lean meats to keep your blood sugar steady.
Snacks: Apples, yogurt, hummus… low GI snacks keep you energized without spikes.
Cheat moments: Occasionally enjoy high GI foods, but remember to “clear the glucose warehouse” with exercise to avoid sticky blood sugar buildup.
✅ Bonus: Why Personal Testing Matters?
Although GI is a nutritionist’s “map,” your own blood sugar response may have its own “GPS.”
Many factors affect blood sugar:
– Time and order of eating
– Presence of fat and protein
– Whether you’ve exercised recently
– Even how well you slept last night
So, for the same banana, one person’s blood sugar stays steady like a rock, while another’s soars sky high.
Want to know what your body really likes or dislikes? Consider using a CGM (Continuous Glucose Monitor), worn on your arm, to track your real-time glucose response. You’ll instantly know:
– Which meals spike your sugar like an elevator?
– Which snacks are secretly gentle?
– What food combos are your personal “golden pair”?
With CGM, it’s like having a “glucose detective” — no more guessing, just data-driven eating and living.
Current mainstream CGMs fall into two categories:
| Brand | Features | Suitable for |
|---|---|---|
| FreeStyle Libre (Abbott) | Small and easy to use, requires scanning with a reader or phone | Great for beginners, more affordable |
| Dexcom | Real-time data to phone, no scanning; alerts for highs/lows | Ideal for insulin users or close monitoring |
💊 How to Get a CGM?
CGMs are prescription devices, so you'll need one from your primary care or endocrinologist.
In the U.S., Medicare and most insurance only cover CGMs for people already using insulin.
If you’re not on insulin but want to learn about your glucose trends, you can pay out of pocket for 1–2 months ($70–80/month) for a “diet detective journey.”
📈 Why Is It Worth Trying?
In just a few weeks, you’ll discover:
– Which breakfast keeps you stable?
– Which fruit sends you sky-high?
– Does coffee with milk cause stealthy sugar climbs?
With journaling, you can build your own “glucose-friendly” meal plan — skip the roller coaster, keep the joy of eating.
🎁 Final Note:“Managing blood sugar isn’t a fortress war — it’s a gentle marathon.”
Be your own gentle guardian of glucose.
Sometimes, we can indulge in “poetry and distance,”
But always keep the GI values on your plate under control!
For a long and healthy life, prevention is the best logic.
[1]: Although ice cream has a low GI value, it is high in sugar and fat, so it is not suitable for frequent consumption.
[2]: Watermelon has a GI of 76, but its GL (Glycemic Load) is actually low.
