The Claim
Prolonged freezing of boiled rice increases its resistant starch content from approximately 1.8% to nearly 4.0%, and this increase is strongly inversely correlated with glycemic index (r = −0.935, R² = 0.87), indicating that starch retrogradation is a key structural mechanism underlying reduced glycemic response.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Freezing boiled rice increases its resistant starch content from about 1.8% to nearly 4.0%, and this change is strongly linked to a lower glycemic index, meaning the rice causes a smaller rise in blood sugar after eating.
See the scientific wording
Resistant starch content in boiled rice increases from approximately 1.8% to nearly 4.0% after prolonged freezing, and this increase is strongly inversely correlated with glycemic index (r = −0.935, R² = 0.87), suggesting starch retrogradation is a key structural mechanism underlying reduced glycemic response.
When rice is cooked and then frozen, the starch molecules rearrange into tight, crystalline structures that digestive enzymes cannot break down. This means less sugar is released when the rice is eaten, leading to a slower and smaller rise in blood sugar.
What the research says
1 studyWhen you cook rice and then freeze it for a long time, its starch changes shape in a way that your body can't digest as easily, which means your blood sugar doesn't spike as much after eating it — and the study proves this happens.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.