When you drink water, are you drinking spring water. Tastes better, squeeze some fresh lemon in it. At a restaurant you can ask for fresh lemon wedge with your water.
Lemonade: FRESH! (not bottled or preserved) lemon juice with water, sweetened with xylitol (a fruit concentrate that neither increases your blood sugar nor makes you acidic, like soda does) or agave nector/syrup.
Hot or iced teas: Herbal teas, hot or cold, sweetened, again, with xylitol or agave syrup. Get all kinds of flavors and try different ones for iced tea. Peppermint and ginger are especially good for you.
Make tea with grated ginger and drink hot, add xylitol or agave syrup as desired, and chill if you want. Could add a squeeze of lemon too.
Iced "coffee": Teechino, a very rich coffee substitute, you can make chilled.
I don't know if natural sparkling waters are as bad as soda. Let me know if you find out. The main problem with soda is that it is extremely acidifying. If you cannot resist drinking it, then make sure you have planty of vegetables, salads, greens, lemon and grapeftuit (strangely, these metabolize as alkaline), berries, almonds, avocado, watermelon, yams, acorn squash. (Search the internet for alkalinizing foods).
Good luck.
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