If I eat healthy will my boobs shrink?

I started developing breasts in the 3rd grade and I've pretty much been a C cup since the age of 10. I used to weigh 114-120 lbs. now I'm about 105-110. I want to start eating healthy so I'm not sure if changing my diet will result in weight loss. I really don't want to lose any weight I just want better eating habits. Do you think my breasts size will shrink or with given my history they'll stay the same?
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I'm not sure if I didn't explain myself well enough so I'll add this here for future opinions.

I am already skinny, I've never been fat ever. Right now I'm 105lbs. and wear a size 0-1. I am a 34C cup. I only want to be healthy, not lose weight. I do not plan on exercising or going on a diet I just want to eat better.

Knowing how skinny I am do you think changing my eating habits will make me lose pounds or just maintain my weight? I want to stay the same weight and have the same Cup size.
If I eat healthy will my boobs shrink?
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