Here is a similar analysis for our old friend HDL – the one that pleasantly goes UP with low carb – as the nasty Blood Glucose, Insulin, GGT, HbA1c, and just about every other danger sign goes DOWN. And with low carb the LDL sometimes goes up a little, yes that’s true. But we covered LDL in the post below. Light Green bars are the afflicted, dark green the general population.