Change the person's daily calorie and macro targets when they ask. from is the local date the change starts, usually today; earlier days keep theirs. Add through (inclusive) only to limit the change to certain days, such as through equal to from for one day. values needs all four of caloriesKcal, proteinG, carbsG and fatG; ask for any not given rather than inventing them, or pass values null to stop targets from that day. Nothing else can be saved, such as diet, allergies or an iron target: say so and use it only in this conversation. Confirm the change only after success.