What is the glycemic index of sweet potato vermicelli?

Handmade, additive-free sweet potato vermicelli

GI ≈ 54; classified as a low-GI food (GI < 55)

The Science: Sweet potato starch is rich in resistant starch. Upon cooking and subsequent cooling, the starch undergoes retrogradation, slowing down digestion and absorption; this results in a much slower rise in blood sugar levels compared to white rice or white wheat noodles.

Comparative Reference

Pure sweet potato vermicelli: GI 54 (Low GI)

White rice: GI 83

Wheat noodles: GI 73

Key Tips for Blood Sugar Control

Portion control: Limit dry vermicelli to no more than 50g per serving and include it in your total daily intake of staple carbohydrates;

Avoid eating it alone on an empty stomach; consume leafy greens and eggs or lean meat first to help moderate the post-meal blood sugar spike;

Do not keep it warm for extended periods after cooking; allowing it to cool slightly increases resistant starch content and lowers the GI;

Avoid dishes like "Hot and Sour Sweet Potato Noodles" (Suan La Fen) or sweet potato noodles in sugary syrup, which often contain excessive sugar and oil.