I've been giving Baby L fish oil supplements. It tastes like lemon (he still hates it) but dries on clothing like regular, stinky, fish oil. After several failed attempts at removing the stench, I finally found Bac-Out Stain & Odor Eliminator by BioKleen. It's an enzyme based, cleaner that WORKS! They have several product lines for kitchen, laundry and cleaners and I'll most likely try them all.