Puritans Pride has a digital Water bottle that makes life so much easier.

It keeps track of all your Fluid intake in a 24 hour period. It is so nice to not have to add up every drink throughout the day. I just look at the end of the day at the display and put that on MFP.

You can put all liquids in it as far as I know. Protein shakes may be too thick but they may work as well.

They are $20 each at Puritans Pride website.

How does it work? I looked it up but it didn't tell me anything about it.

Thanks for posting this. I'll look into it.

It has a long thick straw and it measures the amount of liquid you drink. It has a digital output on the outside that tells you how many ounces you drank.

It is correct too. The first few time I wrote down the amount I put in and it was always right on target.

It also has a little carrying handle so its easy to take walking or on the go.

Oh yeah, it measures in a 24 hour period then resets for the day or you can reset it manually.