Buttermilk is a summer staple known for its cooling properties and digestive benefits. Lightly spiced with roasted cumin and salt, it’s both tasty and gut-friendly. 

Similarly, Coconut water is packed with natural electrolytes, making it ideal for beating dehydration.

Brew green tea or herbal teas like peppermint or hibiscus, let them cool, and add a dash of lemon. These drinks are naturally low in calories and rich in antioxidants. 

You can also prepare a sugar-free lemonade by replacing sugar with natural alternatives like stevia or simply enjoying the tangy taste without sweeteners.

Fresh juices made from cucumber, bottle gourd, or tomatoes are hydrating and nutritious. They help replenish essential minerals lost through sweat and are gentle on the stomach. 

Even popular Indian coolers can be tweaked to become healthier. Drinks like aam panna or jaljeera can be prepared with minimal or no sugar, relying instead on spices and natural flavours for taste.