ආයුබෝවන් ( Ayu-Bo-One) 𝘛𝘩𝘦 𝘶𝘯𝘢𝘥𝘶𝘭𝘵𝘦𝘳𝘢𝘵𝘦𝘥 𝘷𝘦𝘳𝘴𝘪𝘰𝘯 𝘰𝘧 𝘮𝘺 𝘷𝘪𝘦𝘸𝘴, 𝘣𝘶𝘵 𝘯𝘰𝘵 𝘪𝘯𝘵𝘦𝘯𝘥𝘦𝘥 𝘵𝘰 𝘩𝘶𝘳𝘵 𝘢𝘯𝘺𝘰𝘯𝘦. බොක්කෙන්ම ලියන්නේ. ඒ කියලා තොප්පිය දාගන්නත් එපා.
Monday, March 31, 2025
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Friday, March 28, 2025
Cooling Rice: A Simple Trick for Improved Insulin Sensitivity
Cooling cooked rice after cooking increases its resistant starch content through a process called starch retrogradation, which can help mitigate blood sugar spikes.
Here's a breakdown of the evidence:
Mechanism of Resistant Starch Formation
Cooling cooked rice (especially refrigeration) causes starch
molecules to reorganize into a crystalline structure that resists digestion in
the small intestine. This retrograded starch acts as resistant starch (RS),
which:
- Slows
carbohydrate absorption, reducing rapid blood glucose spikes.
- Ferments
in the colon, producing short-chain fatty acids (SCFAs) that improve
insulin sensitivity and glucose metabolism.
Impact on Blood Sugar Control
- Clinical
Studies:
- In type
1 diabetes patients, cooled rice (refrigerated for 24 hours) caused lower
postprandial glucose peaks (9.9 vs. 11 mmol/L) and shorter time to
peak compared to fresh rice.
- A
similar effect was observed in healthy individuals, with cooled
rice lowering glycemic response by ~18%.
- Meta-analyses
confirm RS reduces fasting glucose and insulin resistance
(HOMA-IR) in both diabetic and non-diabetic populations.
- Key
Factors:
- Dosage:
Effects are stronger with ≥28 g/day of RS.
- Storage
Duration: Longer cooling (e.g., 24 hours at 4°C) increases RS content
more than shorter periods.
- Reheating:
While reheating may slightly reduce RS content, cooled rice still retains
benefits compared to fresh rice.
Practical Considerations
- Hypoglycemia
Risk: Cooled rice may increase hypoglycemic episodes in
insulin-dependent individuals due to slower glucose release.
- Other
RS Sources: RS type II (e.g., from potatoes, legumes) and type III
(retrograded starch) are more effective than RS type I (found in whole
grains).
Because cooling rice enhances resistant starch formation, which can help stabilize blood sugar by slowing carbohydrate absorption.
While the evidence is strongest for type II and retrograded starch, refrigerated rice remains a practical dietary strategy for managing glycemic responses.