Inclusion Criteria:  Dietary trials in humans Randomized treatment allocation ≥3 weeks Intervention with oats or oat beta-glucan Suitable control (i.e. isocaloric diet that is not vegetarian or vegan) Ascertainment of viable outcome data for cardiovascular risk calculations  Exclusion Criteria:  Non-human studies Non-randomized treatment allocation <3 weeks No intervention of oats or oat beta-glucan Lack of a suitable control (i.e. non-isocaloric) No viable endpoint data