Try #2: okay you can add propel packets to bottles of water. Pour out a sip first, add then shake well. Propel has all the electrolytes of Gatorade without the sugar plus zero salt. My favorites are Raspberry Lemonade or just the Propel Lemonade added to unsweetened tea. My 89 YO Dad loves the Grape flavor.

I bulk buy from Amazon but they sell at HEB & Walmart too.