'Carrot Fit' App Slammed for Fat Shaming

The new app uses insults as motivation to help users lose weight.
3:00 | 02/05/14

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Transcript for 'Carrot Fit' App Slammed for Fat Shaming
The new app the helps you keep in shape with some tough love it's called -- -- Designed to shame you into losing weight the makers say it's all meant to be in good fun critics say it's way too harsh. Here's ABC's Abbie Boudreau with the details. Moment of true. -- -- -- -- Realizing that voice in your head. Readings -- human is real -- -- fit what some are calling -- faster -- That's supposed to help you lose weight using insults as motivation my own -- -- if the latest member of the booming fitness tech family. Where -- measures BMI and weight fluctuation but if you pack on the pounds. Save for I think having more of today's tough love approach that sarcastic and sassy. I I think people really respond to that and it motivates them more -- that traditional feel good approach. Well call me in the head clearly celebrity train Harley Pasternak is not a fan I think -- in -- way. Maybe everything that we already have too much you're clear to me reality -- that -- People screaming yelling at us. But if you don't mind being spread and ridiculed prepare yourself to be challenged parents it may just be the perfect. Good Morning America Abbie Boudreau ABC news -- six. So yes you all the way and -- -- this let's see what a -- says she says that that angle we're for the first music then so be it but I find off putting. There are so many other positive approaches. We're Nate Miller tweets a little tough love about the yet nobody makes you -- that nobody's fault but yours -- -- makes you feel bad get a grip people don't like it don't like it don't buy it. Okay it's like a -- -- -- I can't ask the economy back door shut behind her where anti -- talking a land before the -- hat -- Let's I think we did good enough job of -- that doing that ourselves on GO every -- I mean look what you're talking about is really the difference between positive reinforcement. And punishment and what works -- better -- -- kinda goes more on the side of positive reinforcement I think you catch more flies with honey but. At the end of the day it's what ever learn and -- -- doesn't they have just used to be arriving body mass index it's one -- -- ones -- -- -- -- and -- you guys -- here -- for weight -- it's really one of the biggest ones we use -- -- but is -- perfect absolutely not it has limitations it doesn't take into -- muscle -- But listen the future is incorporating all these bio metrics like -- blood pressure wastes -- conference next -- conference BMI. Using technology. These apps and this is just one of your -- -- nutrition -- what has worked. When you're talking -- about maintenance we're losing a few pounds it's pretty clear that what you eat is really the key and that but when you're talking about the issue of obesity or morbid obesity. That really -- the playing field and then really that's the trend is using. Diet exercise medication surgery everything in our arsenal because it is a complex issue when you're talking about losing that much -- you actually. It's more about what you have to gain with good health than what you have to do so it's really -- complexes her blood type for the community and kids you know thinking.

This transcript has been automatically generated and may not be 100% accurate.

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