One should just use the column name "id" then the table can be renamed if needed without having to rename the columns or perhaps the indexes. Although that's another debate altogether..
I'm always curious if one day one of these "solutions" is actually correct. I'm definitely rooting for the author, although probably have to wait until Terence Tao chimes in.
I agree it sounds more like an opinion rather than based on a proper scientific study. Since ALA is a precursor for DHA even if only creating limited amounts; consume enough of it then you'll make more than enough DHA. From this pubmed study I can see flaxseed/walnut oil is going to provide enough ALA for this purpose https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2989356/.