So, in an addition, those whoever partake of a meal which has advantage on a constitution saving throws which is against to diseases for the next 24 hours. View/set parent page (used for creating breadcrumbs and structured layout). Also the meal can serve almost six people and each of those six persons who eats it will regain two more hit Dice at the end of a long rest.
Suppose, if you already a proficient with them and you add double your proficiency bonus for checks that you make with them. The extra proficiencies are great, but the main reason why you want this feat is for Expertise.