Nutritionist Paridhi Garg has shared 10 foods to stay hydrated amid severe heatwave, saying, "Drinking water isn't always enough." These are coconut water, cucumber, buttermilk, watermelon, basil seeds, bottle gourd, ridge gourd, lemon mint water, raw mango and pomegranate. Garg said raw mango is rich in vitamin C and contains natural electrolytes, while bottle gourd is a water-dense vegetable.