By Nielsen

Soft drink, soda, pop, fizzy drink, tonicโ€”what you call it depends on where you live, but whatever youโ€™re drinking, this bubbly beverage has long been a staple at many American tables. But while rarely a commercial break passes without an ad for one brand or another, weโ€™re spending less on soda overall.

Over the last four years, total U.S. dollars spent on these carbonated beverages declined by 1%, costing the industry over $1 billion in sales. Much of this appears to be driven by a steep decline in diet soda sales, which dropped nearly 5% in the same period. On the other side, regular soda sales initially declined but have grown in the past two years.

This switch may be tied to recent trends toward all-natural ingredients. Consumers are going back to basics, and looking for foods that are fresh, natural and minimally processed. In Nielsenโ€™s Global Health and Wellness Survey last year, 29% of U.S. respondents rated โ€œall naturalโ€ as very important, and about 40% said that the absence of artificial colors and flavors is very important.

But just because weโ€™re not reaching for soda as often doesnโ€™t mean weโ€™re off the fizzy stuff all together. Sparkling water sales have skyrocketed in the U.S., growing more than 15% in four years. Current health and wellness trends might be to blame for bursting sodaโ€™s bubble. In North America, sales of healthy categories like water, fruit and yogurt grew 7% over the past two years, while sales of indulgent categories like carbonated soft drinks, chips and chocolate fell 8%.

In addition to the health benefits consumers crave, whatโ€™s not included plays a major role in purchase decisions. Roughly one-third of U.S. respondents, say itโ€™s very important that foods are low in sugar (27%) and fat (25%), and about one-quarter believe the absence of high fructose corn syrup (33%) and caffeine (16%) is very important.

But donโ€™t worry about your favorite sodas disappearing, sales for this fizzy drink wonโ€™t fizzle out anytime soon. With more than $26 billion in sales last year, sodaโ€™s popularity is still unbelieveabubble.