应该是对的，我又查了一下资料，carrot GI 高，但是GL 低

“ Carrots are another example of a low GL food that many people think will raise their blood sugar a lot — but it’s not true. That’s because carrots have a high GI of 71. However, what most people don’t know, is that the GL for carrots is only 6. Therefore, unless you’re going to eat a pound and a half of carrots in one sitting, an average serving of carrots will have very little impact on blood glucose levels. That said, juicing carrots — which means consuming more carrots at once — will have a greater impact on blood glucose.”

关键是碳水化合物的量。 GI 是对食物中的碳水化合物对升糖的影响，而没有考虑碳水化合物含量。  看 GL 应该更合理