[7] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716748/ is only 24 week period, following obese patients, which already have extremely high levels of LDL by default. First of all - 24 weeks is not that long of a period, second - if you just put obese people on any kind of diet that restricts calories or reduces the amount of processed foods they eat - it is only natural that they LDL will be lowered as a result