In my observation there are many contradicting studies about LDL and keto, for example this study's results show significant increase in LDL while on keto: https://www.ncbi.nlm.nih.gov/pubmed/31067015
This one is baffling. LDL "significantly increased" while triglycerides "significantly decreased"? Calories/day not stated; if, say, 3200 kcal, that means 40g of carbs.
n=17, so who knows.