Eating hard, tough foods, can help define the jawline?

[Yuxhds]

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[David17]

Well yeah, cause you're chewing more so it trains your jaw. Just don't f up your teeth in the process.

 

[Deleted member 41390]

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no it cant the actual bone wont change. maybe jaw muscles but thats about it and that can really looksmin your face if you havent got good insertions.