I'm not an expert but as someone who finds benefit from low-carbing my understanding is: if you raise sugar levels then you raise insulin levels, and at some po

I'm not an expert but as someone who finds benefit from low-carbing my understanding is: if you raise sugar levels then you raise insulin levels, and at some point if your insulin is chronically raised you lose some sensitivity to the hormone (similar to how you can get tolerant to caffeine from drinking too much coffee etc), and being 'insulin resistant' can lead to many health issues.