"Flaxseed oil intake reduces serum small dense low-density lipoprotein concentrations in Japanese men: a randomized, double blind, crossover study" https://pubmed.ncbi.nlm.nih.gov/25896182/
They used 10grams, that’s quite a bit, I don’t know if I can swallow that much....but if it helps why not? And then of course there’s always the question of possible side effects....

And which other supplements and foods work against sd-LDL levels?
Thanks everyone!