Showing posts with label CGM Analysis. Show all posts

7/22/2026

Japanese Food Mastering Blood Sugar with Type 1 Diabetes: A Personal Journey

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　Here's how my blood sugar reacted after I had a Châteraisé soda ice pop for an afternoon snack. The impact of this frozen treat, which contains no fat or protein, is clearly visible in the graph.

　I know I seem to eat a lot of Châteraisé ice cream, but that's just because there's one nearby and they have so many tasty *and* affordable options. Rest assured, I am definitely NOT a shill for Châteraisé! (lol)

Key Takeaways

My blood sugar started rising immediately after eating the ice pop.
Since it contained absolutely no fat or protein, the carbohydrates seemed to be absorbed directly and quickly.
Although it seemed to stabilize for a moment, the subsequent rise in blood sugar is likely due to my lunchtime insulin wearing off and the effects of coffee.

My Blood Sugar After a Soda Ice Pop

The characteristics of this frozen treat—0.0g of fat and protein, and 13.4g of carbohydrates per stick—directly led to a significant spike in blood sugar.
The sugars and high-fructose corn syrup in the ingredients have a high GI (glycemic index, or speed of carbohydrate absorption), which I believe caused the rapid blood sugar increase seen in the yellow-hatched section starting from 14:20.
From a low of 97 mg/dL at 14:20, my blood sugar rose to approximately 130 mg/dL within just 50 minutes, during the hatched period.
Overall, there was a substantial blood sugar spike of +54 mg/dL. The subsequent rise is likely due to having almond sardines with coffee, and my lunchtime insulin effect wearing off. (My best guess!)
Despite being a modest 51 kcal, my blood sugar still climbed this high, simply because there was no "cushioning effect" from fat.

⚠️ Important Disclaimer
The blood sugar data and graphs presented in this article are solely personal measurement records and observations, and are not intended to recommend or guarantee specific medical treatments, dietary plans, or diagnoses. Blood sugar fluctuations and bodily reactions vary individually. If you are currently undergoing treatment or following a restricted diet, please consult your primary physician or a registered dietitian to best suit your personal health condition. This blog assumes no responsibility for any damages incurred from the use of this information.

ℹ️ Note for International Readers:
• Portion Sizes: The food portions and nutritional data featured in this blog are based on standard Japanese serving sizes, which may be smaller than typical Western servings.
• Net Carb Calculation: Net Carbs = Total Carbs - Dietary Fiber.

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7/19/2026

My Type 1 Diabetes Journey: Mastering Blood Sugar Control

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[Facing My Fears: The Data and Emotional Rollercoaster of My Re-hospitalization & Precision Needle Biopsy]

My hospitalization was triggered by persistently high IgG4 levels—suggesting possible Autoimmune Pancreatitis (AIP)—along with a visibly swollen pancreas on my contrast CT and MRI scans. To get a definitive answer, I was put under close observation.
IgG4 Reference Levels: 146 (At admission) → 135 (1 month later)
The thought of an Endoscopic Ultrasound-Guided Fine-Needle Aspiration (EUS-FNA)—where a fine needle is passed through the stomach wall to harvest tissue—was absolutely terrifying. The mere mental image stressed me out. A knowledgeable friend even warned me, "If it's a tricky procedure, you should swap hospitals to find a high-volume specialist." I was torn, but ultimately stuck with my original doctor. Funnily enough, when I researched it a few days beforehand, I realized this is actually a very standard procedure and not nearly as daunting as I'd feared (lol!).
On the day of the procedure, the sedative knocked me right out, and the next thing I knew, I was back in my hospital room. It felt just like getting a routine endoscopy. Aside from a slightly bloated tummy, I felt completely fine. I breathed a huge sigh of relief when my doctor confirmed, "Everything went perfectly." If the results came back positive, I would have faced the ultimate challenge for a Type 1 Diabetic: steroid therapy and the explosive blood sugar spikes that come with it. Waiting for the results was an absolute nerve-wracking ordeal.

[The Verdict: My Test Results]

Two weeks later, the biopsy results came back. (According to medical guidelines, they look at things like the rate of abnormal cell infiltration). The verdict? "The pancreas does not present like AIP. Pathology is negative for AIP. => No issues detected." In that single moment, the dark cloud of cancer and autoimmune pancreatitis fears completely vanished.
Fast forward three months: a follow-up MRI scan officially confirmed that the swelling and inflammation in my pancreas had completely subsided and resolved.
While the root cause of the "fulminant type 1 diabetes" that suddenly struck me remains a mystery, we cleared up its connection to my pancreatic swelling. Now, I can focus solely on managing my blood sugar with insulin, without needing any unnecessary extra treatments.

【Summary】

Since being discharged, my daily routine has revolved around insulin injections before every meal and finger-prick blood sugar checks.

But after getting through that follow-up hospitalization and biopsy, I received the ultimate peace of mind: my biggest fears (pancreatic cancer and autoimmune pancreatitis) were completely ruled out. Best of all, I don't need steroid therapy anymore. Now, I can pour 100% of my energy into my daily insulin routine and mastering my blood sugar control.

Survived the dreaded needle biopsy and got a clean bill of health, putting my biggest worries to rest.
Successfully avoided steroid treatments that would have sent my blood sugar levels through the roof.
The final MRI confirmed that the pancreatic inflammation from when my fulminant diabetes first struck has fully cleared up.

⚠️ Disclaimer & Important Notice

The blood sugar data and charts shared in this blog represent my personal records and experiences. They are not intended as medical advice, dietary recommendations, or a guarantee of specific medical outcomes. Blood sugar responses and bodily reactions vary greatly from person to person. If you are currently undergoing medical treatment or managing a restricted diet, please consult your primary physician or a registered dietitian. This blog assumes no responsibility for any actions taken based on the information provided here.

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Japanese Food The T1D Diaries: Real-Life Blood Sugar Tracking & Insights

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I decided to track my blood sugar levels after treating myself to Chateraise's "Freshly Squeezed Milk Bar - Coffee Flavor." As expected, my numbers shot up post-indulgence. Thanks to the high fat content of the ice cream, my glucose spiked quickly and then lingered at a high level for quite a while.

Ingredients & Nutrition: This treat is officially classified as premium "ice cream" with a relatively high milk fat content of 9.0%. Since dietary fat slows down digestion and delays carb absorption, my blood sugar didn't just spike immediately—it remained elevated well into the night.

[Quick Summary]

Right before 10:00 PM, I was heading into low blood sugar territory. My glucose had dipped to 69 mg/dL, but it spiked dramatically after eating the ice cream bar.
At its peak, my glucose reached 199 mg/dL, creating a massive spike with a total fluctuation of +105 mg/dL.
Even past 11:30 PM, my levels refused to come down, staying elevated for quite some time.

[Blood Sugar Data After Eating the Ice Cream]

Around 10:00 PM: Started on the lower side, right around 69 mg/dL just before eating.
10:00 PM – 11:30 PM: Levels began climbing immediately after eating, steadily rising over the next hour and a half.
Around 11:30 PM: Reached my peak for the night at 199 mg/dL, where the rise finally plateaued.
After Midnight: Although it dropped slightly past the peak, my glucose hovered stubbornly around 140 mg/dL even by 1:00 AM.

⚠️ Disclaimer & Medical Note
The blood sugar data and graphs featured in this post are based purely on my personal tracking and experiences. They are not intended to recommend or guarantee any medical treatment, diet, or diagnosis. Blood sugar responses vary greatly from person to person. If you are undergoing medical treatment or are on a restricted diet, please consult your physician or registered dietitian. The author of this blog assumes no liability for any actions taken based on this information.

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*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.

7/12/2026

Navigating Type 1 Diabetes: My Journey to Mastering Blood Sugar Control

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By the time I hit the three-week mark of my grueling hospital stay, I could physically feel my body making a dramatic recovery. The self-injections before meals and the constant blood sugar monitoring—which initially filled me with anxiety and dread—have now become a natural, essential part of my daily routine. Seeing my numbers steadily improve has given me the confidence to face my body and my health with a positive, proactive mindset.

【Quick Summary】

My muscle and kidney levels, which were looking incredibly grim, have plummeted back down, meaning I am officially out of the danger zone.
My blood sugar levels—essentially my body’s past report card—are still a bit on the high side, but compared to the sheer panic of when I was first admitted, they have improved massively.
Thanks to my daily insulin injections, my blood sugar has stabilized within a healthy, body-friendly range. I've come to see these shots not as a chore, but as a vital ritual that does the job my pancreas can no longer do.

🔍 The Pancreatic Cancer Scare: Looking Back at the Results

My blood test showed tumor markers above normal, with CEA at "6.5" and CA19-9 at "45". When doctors first mentioned a possible pancreatic cancer scare, my mind went completely blank with shock.
Fortunately, a prompt contrast-enhanced CT scan revealed no sign of tumors, conspicuous lesions, or abnormal blood flow around the pancreas.
It turns out the spiked levels weren't caused by cancer, but were likely a temporary reaction to severe high blood sugar and intense, systemic inflammation.
As my diabetes treatment progressed and the bodily inflammation subsided, the tumor marker levels naturally dropped, leading to a final diagnosis of negative (all clear).

📈 My Hospital Stats: Blood Sugar Trends and Vital Signs

My muscle enzyme level (CPK), which had skyrocketed to over 10,000 upon admission, plummeted to a perfectly healthy 58 U/L.
My rapidly deteriorating kidney function marker (creatinine) also dropped to 0.86 mg/dL—a massive sigh of relief.
My HbA1c (the report card for blood sugar over the last few months) stands at 7.4%. It's still slightly elevated, but it represents a dramatic improvement.
Thanks to daily insulin, my once-sky-high blood sugar has stabilized at a gentle, body-friendly 137 mg/dL.
While I still face the daily annoyance of the occasional painful prick when a needle hits a nerve, or minor swelling like a mosquito bite, I’m back to strength training and walking for rehabilitation without any issues.

🔍 Autoimmune Pancreatitis Suspicions and Lab Results

As mentioned above, my overall health is improving, and my blood levels are returning to normal. With my tumor markers dropping back to healthy ranges, the pancreatic cancer scare has been officially ruled out.

However, my blood work revealed IgG4 levels above "140 mg/dL" (or an equivalent abnormal elevation in immunoglobulins), a key marker for immune function. This raised concerns about possible Autoimmune Pancreatitis.
This is a specific condition where the immune system goes haywire and attacks the pancreas. Confirming a diagnosis requires not just blood data, but also visual confirmation of physical changes (such as sausage-like swelling) via imaging.
In my case, the contrast-enhanced CT scan showed no typical signs of abnormalities, such as diffuse enlargement or pancreatic duct narrowing.

Nevertheless, the suspicion of autoimmune pancreatitis still lingers, meaning I will continue with follow-up observation and re-testing.

⚠️ Medical Disclaimer

The blood sugar data and charts shared in this article are personal records and reflections only. They do not constitute, recommend, or guarantee any medical treatment, dietary therapy, or diagnosis. Blood sugar responses vary significantly from person to person. If you are currently undergoing treatment or are on a restricted diet, please consult your doctor or a registered dietitian regarding your specific health needs. The author/blog assumes no responsibility for any actions taken based on the information provided here.

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*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.

7/09/2026

Type 1 Diabetes: My Blood Sugar Battle and a Terrifying Pancreas Scare

Although my blood sugar levels slowly began to stabilize after starting insulin therapy, my ordeal was far from over. In fact, subsequent detailed MRI scans revealed that my 'pancreas was severely swollen,' raising suspicions of another serious illness. This time, I'll share details about this other alarming change in my body and the concerning test results.

[Swollen Pancreas and Suspected Autoimmune Pancreatitis]

Detailed MRI imaging of my internal organs revealed that my pancreas was generally enlarged (swollen and bloated).
My doctor informed me of the possibility of pancreatic cancer, as well as 'my own immune system mistakenly attacking my pancreas (autoimmune pancreatitis).
Hearing that the sudden onset of fulminant Type 1 Diabetes might be deeply connected to this severe inflammation of my pancreas, I was shocked to realize just how much my body was deteriorating.
Was it diabetes first, or pancreatitis? The cause of fulminant Type 1 Diabetes is often unclear, making it hard to say...

[Terrifying Abnormal Numbers]

Among my blood test results, one alarming number was CA19-9.
This value is typically used as a marker for cancer (tumor marker), with a reference range of 37.0 or less. However, I astonishingly registered an off-the-charts 401.0 U/mL.
I vividly remember my heart pounding when the doctor explained, 'It's unclear if this is a serious illness, or just a temporary spike due to your severely swollen pancreas.'

⚠️ Important Notes on Usage
The blood sugar data and graphs published in this article are solely personal measurement records and impressions, and do not recommend or guarantee specific medical treatments, dietary therapies, or diagnoses. Blood sugar fluctuations and bodily reactions vary among individuals. If you are currently undergoing treatment or on a restricted diet, please consult your primary physician or a registered dietitian according to your own health condition. This blog assumes no responsibility for any damages incurred through the use of this information.

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*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.

6/28/2026

Think Fruit Is Always Safe? The Shocking Mango Blood Sugar Spike (with Charts!)

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I decided to add just two slices of gifted mango to my usual breakfast routine—low-fat milk, yogurt with banana, a fried egg, and whole-wheat toast—and my blood sugar spiked to an astonishing degree.

Seeing my normally stable glucose levels shoot up alongside the sweetness of the mango was a stark reminder of just how powerful natural fruit sugars can be.

Using this spike as a learning experience, I want to explore some tips on how we can enjoy our favorite fruits more mindfully and strategically.

Summary

Adding mango to my morning routine triggered a massive post-meal blood sugar spike.
Even though I consumed dietary fiber from the whole-wheat toast, it wasn't enough to buffer the high sugar load from the fruit itself.
This experience made me realize I need to rethink eating mango like a dessert and start being smarter about portion sizes and timing.

Analyzing Mango's Nutrients & Blood Sugar Impact

Mangoes are rich in fructose and glucose, which digest and absorb incredibly fast, making them a high-risk food for sudden blood sugar spikes.
With a relatively high glycemic index (GI), combining it with my usual breakfast pushed my total carb intake too high, causing my levels to skyrocket.
While fruit is widely viewed as healthy, the rapid absorption of concentrated natural sugars can actually put quite a strain on your body.
To avoid these post-meal spikes, I've found it's best to either limit the portion size or enjoy them as a standalone snack when baseline blood sugar levels are already low.

⚠️ Important Disclaimer
The blood sugar data and charts presented in this article are solely based on personal measurements and experiences. They do not constitute, nor should they be used as, medical advice, dietary therapy, or diagnosis. Blood sugar responses vary greatly from person to person. If you are currently undergoing medical treatment or have dietary restrictions, please consult your primary physician or a registered dietitian before making changes. This blog assumes no responsibility for any actions taken based on the information provided herein.

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*Affiliate Disclosure: As an Amazon Associate, this blog earns from qualifying purchases.

*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.

6/25/2026

My Insulin Switch Story: From Glargine to Tresiba

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Insulin

In diabetes treatment, the choice of basal insulin directly impacts the quality of daily life. This time, I've compiled my personal experience with switching insulin preparations and a comparison between them.

Comparing the Preparations

Feature	Glargine (Lantus, etc.)	Tresiba (Degludec)
Mechanism of Action	Once-daily, consistent effect	Ultra-long acting (42+ hours)
Dosing Time Flexibility	Same time each day is preferred	Tolerant of minor deviations

The Value of "Peace of Mind" from My Experience

Initially, I used Glargine during my hospitalization, but after discharge, my doctor at the outpatient clinic suggested switching to Tresiba. While Tresiba's drug cost is slightly higher, the "peace of mind" it offers—knowing that its effects overlap even if dosing times are slightly off, and there's no anxiety about the effect wearing off—is, I believe, worth more than the price difference.

Important Considerations When Using Tresiba

Key Points to Be Aware Of:

Prolonged Hypoglycemia: Due to its very long-acting nature, if hypoglycemia (low blood sugar) occurs, it may take a longer time for blood glucose levels to return to normal.
Injection Site Management: As this medication remains in the body for an extended period, it's crucial to properly rotate injection sites and protect the subcutaneous tissue.

*This content is based on personal experience. Any changes to medication or administration methods should always be discussed and decided upon with your primary physician.

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6/21/2026

Japanese Food Blood Sugar Test: Does Chateraise's 70% Low-Carb Chocolate Ice Cream Actually Work? (Part 2!)

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Hi everyone!

Following up on my previous test of Chateraise's "70% Low-Carb Chocolate Ice Cream," today I'm testing another treat to see how it compares.

Here is my honest report on how my blood sugar responded after giving it a taste test!

Today's Results

Here is my blood sugar chart after eating the ice cream. Use this to compare how it differs from the previous "low-carb ice cream"!

▼ Key Takeaways From the Graph

My glucose level peaked with an increase of +43 mg/dL.
The levels rose gradually, taking some time to reach the peak.
My average blood sugar hovered around 130 mg/dL, clearly showing the impact of this snack.

Comparing It to the Previous Low-Carb Ice Cream

Compared to the "70% Carb-Cut" ice cream I tested last time, there was a stark difference in how my blood sugar spiked.

It turns out the total carb count
makes a massive difference in blood sugar fluctuations!

Looking at today's numbers, it's incredibly clear that carb content directly determines the peak glucose level. Comparing this to regular ice cream really made me appreciate just how well low-carb products are formulated to prevent massive glucose spikes.

Wrapping Up: Key Takeaways from Part 2

Treating yourself to ice cream once in a while is great for mental health, and knowing how your body responds to blood sugar makes enjoying these treats so much more worry-free!

◆ Today's Lessons ◆

✓ The higher the carb count, the higher the glucose peak
✓ Choosing snacks that match your unique body chemistry is key
✓ Continuous Glucose Monitoring (CGM) makes tracking beautifully visual

⚠️ Disclaimer / Please Note

This article is a personal record of my own experiences and thoughts and does not guarantee or recommend any specific diet or medical outcome. Blood sugar responses vary from person to person. If you are undergoing medical treatment or strictly managing your carbs, please consult with your doctor or a registered dietitian before making dietary changes.

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*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.

6/03/2026

Weekly Blood Glucose Drama: A Shocking 400 mg/dL Spike! (May 24, 2026)

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Weekly Blood Glucose Report (Week of May 24, 2026)

This week, my baseline blood sugar shot up dramatically from the middle to the latter half of the week. On Thursday, I even recorded a temporary, furious spike exceeding 400 mg/dL [cite: 1]. While I managed to recover towards the weekend, finally dropping to a reassuring level by Sunday night, it was a generally nerve-wracking week with intense fluctuations [cite: 1].

Weekly Continuous Trends

Day-by-Day Summary Analysis

On Thursday, May 21st, the graph turned stark red and shot up towards the evening, reaching a weekly high of 411 mg/dL. This was a major setback [cite: 1].
On Tuesday, May 19th, I observed a jagged and intense waveform with frequent ups and downs throughout the day, marking it as the most unstable period of the week [cite: 1].

Time-of-Day AGP Analysis

During the sleeping hours, from late night to early morning, my levels remained relatively calm, staying within the green baseline (below 180 mg/dL) [cite: 1].

Daily Summary

By Sunday night, my baseline finally dropped, firmly settling at the week's lowest point of 84 mg/dL, ending the week on a reassuring note.

Time-of-Day AGP Profile

Around 9 AM, the median of the dark blue line sharply surged, confirming this is the time when the impact of breakfast is most evident.
Around 6 PM, another clear peak was observed, suggesting I need to pay close attention to the carbohydrate content and eating order of dinner.

⚠️ Important Notes for Use The blood glucose data and graphs presented in this article are solely personal measurement records and observations, and do not endorse or guarantee any specific medical treatment, dietary therapy, or diagnosis. Individual responses to blood glucose fluctuations and physical reactions may vary. If you are currently undergoing treatment or on a restricted diet, please consult your physician or a registered dietitian in accordance with your personal health condition. This blog assumes no responsibility for any damages arising from the use of this information.

🛍️ Looking for useful tools or low-carb support options on Amazon?

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*Affiliate Disclosure: As an Amazon Associate, this blog earns from qualifying purchases.

*Medical Disclaimer: The content on this blog represents the author's personal records for informational purposes only. Always consult with your doctor.