NO ma agevola l'assorbimento dei lipidi (e anche di altre sostanze).
http://inhumanexperiment.blogspot.it/2009/06/bioavailability-of-flax-lignans-from.html
the bioavailability of lignans from flax seed can be increased dramatically by crushing or grinding the seeds (link). Crushing flax seeds is better than consuming whole flax seeds, but ground flax seeds (i.e. flax meal) are superior in terms of lignan absorption. That's good news, because while I find the taste of whole flax seeds somewhat unpleasant and the taste of flax seed oil (or linseed oil) downright disgusting, flax meal actually tastes quite nice.