Participants will be identified and recruited at the HNU and RIHN. Participants will be informed about the study aims and procedures and will be pre-screened on the basis of inclusion/exclusion criteria. If eligible, they will sign the informed consent and enter the study with visit 0 where a clinical and biochemical evaluation of the health status will be performed. If subjects are still eligible for the study according to all the exclusion criteria, they will be included into the trial and randomised to receive the active supplementation or placebo at visit 1 (day 5). Volunteers will be invited to commence the study in batches of 5 people.