The Claim
Cold storage of cooked rice at 4°C increases the formation of B-type starch crystallites to approximately 2%, enhances nanoscale and short-range molecular order, reduces pore size in the rice matrix, and increases slowly digestible starch content to 38.16% by reducing enzymatic hydrolysis of amorphous starch regions.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Chilling cooked rice at 4°C changes its starch structure to increase slowly digestible starch to 38.16% by reducing enzyme access to amorphous regions through increased crystallinity and reduced pore size.
See the scientific wording
Cold storage of cooked rice at 4°C increases the formation of B-type starch crystallites to approximately 2%, enhances nanoscale and short-range molecular order, and reduces pore size in the rice matrix, which collectively reduce enzymatic hydrolysis of amorphous starch regions and increase slowly digestible starch content to 38.16%.
When cooked rice cools in the fridge, the starch molecules lock into tight, ordered structures that are hard for digestive enzymes to break apart. These structures block the enzymes from reaching the softer parts of the starch, so less of it gets digested quickly and more of it passes through slowly.
What the research says
1 studyWhen you cool cooked rice in the fridge, its starch molecules rearrange into tighter, harder-to-digest structures, making more of the starch digest slowly — and the study directly measured this, finding exactly what the claim says.
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.