We all know that high-calorie drinks can add inches to your waistline.
But now researchers are saying their diet-friendly counterparts will have you punching extra holes in your belt.
A new combination of studies show it's the artificial sweetener in the soda that is throwing off your ability to know how many calories you really need, which can lead to over-eating later. A hefty blow for some dieters who drink it guilt-free.
And Deanna Turnbaugh says she agrees.
"When I stopped drinking soda and I consumed more water or decaffeinated tea, I'm not putting the weight on," said Turnbaugh.
Turnbaugh says she hasn't given up the diet drink entirely.
"I'm trying really hard but I gotta treat myself once in a while," said Turnbaugh.
Something local dietitians say is nothing to lose sleep over.
"Everything's ok in moderation," said Hy-Vee Registered Dietitian Brittany Donlon. "With diet soda there's been lots of research studies but as a dietitian I look at all of the studies. Not just one of them to draw a conclusion from."
Donlon says adding cucumbers, lemons, or flavor packets to your water can help add flavor if that's what's keeping you from drinking it.
She says her main concern is that people are substituting healthy drinks - like a glass of water - for unhealthy ones.
"I drink too much soda. I don't drink nearly enough stuff that's good for me," said Quincy Resident Mike Perry
Donlon says she isn't entirely convinced by these studies because she says each study has to be looked at from all angles.
She says she looks at a combination of a lot of different studies.
The American Beverage Association says the claims that diet soda is hurting your diet are more opinion than fact and it cites several studies in which people drinking diet sodas actually lost weight.
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