Disclosed is a system 2 for monitoring the liquid intake of a user 3. The system comprises: a monitoring device 4 designed to determine the amount of liquid taken from a container 10 an interface 6 designed to receive, from a vital sign parameter sensor 12, a vital sign parameter 14 of the user 3 of the system and a prompting device 8 designed to prompt the user 3 to drink, depending on the amount 16 of liquid taken and the vital sign parameter 14.
