Soda sales going flat

(CNN) - Soda sales are losing their fizz.

Spending on soft drinks dropped more than 3 percent over the last year, according to Nielsen. The drop in diet drinks was higher, topping 7 percent.

Health conscious consumers are cutting back on sodas, especially diet sodas flavored with artificial sweeteners.

Industry watchers say the trend started 10 years ago but has intensified over the last five years.

To offset sinking sales, soft drink makers are now offering their own brands of water.

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