Available variables:
    # 	count : The number of times the food (or its food group) has been eaten within the food history
    # 	hunger_count : The total amount of hunger that the food (or its food group) has restored within the food history (1 hunger unit = 1/2 hunger bar)
    # 	saturation_count : The total amount of saturation that the food (or its food group) has restored within the food history (1 saturation unit = 1/2 saturation bar)
    # 	max_history_length : The maximum length of the food history (see food.history.length)
    # 	cur_history_length : The current length of the food history (<= max_history_length)
    # 	food_hunger_value : The default amount of hunger the food would restore in hunger units (1 hunger unit = 1/2 hunger bar)
    # 	food_saturation_mod : The default saturation modifier of the food
    # 	cur_hunger : The current hunger value of the player in hunger units (20 = full)
    # 	cur_saturation : The current saturation value of the player
    # 	total_food_eaten : The all-time total number of times any food has been eaten by the player
    # 	food_group_count : The number of food groups that the food belongs to
    # 	distinct_food_groups_eaten : The number of distinct food groups in the player's current food history
    # 	total_food_groups : The total number of enabled food groups
    # 	exact_count : The number of times the food (ignoring food groups) has been eaten within the food history
    #
    S:food.modifier.formula=IF(count <= 2,1 (max_history_lenght-count+1)/(max_history_lenght)