- Regular intake of dietary supplements or "functional foods" which may interfere with lipid absorption and/or metabolism (e.g. rich in plant stanol or sterol like PRO-ACTIV or DANACOL products, red yeast rice, policosanol, omega-3 fatty acids like fish oils, ST HUBERT OMEGA 3 or PRIMEVERE products, soya protein, oat fiber like QUAKER OATS, psyllium, chitosan, guar gum, inulin, etc.) or stopped less than 3 months before the randomization.