This is a link to day four of a summit about vitamins. Only available 24 hours. Should be several talks that you can listen to free.
[ Admin note: Please abide by guideline 13. You have posted about six recent posts which are either a bare link, or almost so. People with limited time, bandwidth, etc., should not be expected to follow blind links where they have little or no idea where they will be taken.
Please address this, otherwise existing and future posts will be deleted.
13. If you post a link, please at least explain briefly what people can expect to find if they follow the link. Links without such an introduction/explanation may be deleted.