Are YOU what you eat?

Sometimes woo sites do encourage you to do stuff that is good for you, but they encourage you in the wrong way. An example of this would be this pic from Raw for Beauty:

While in a technical sense this is true because your cells are made from what you eat, but this is done through a complex chemical process where chemical components are broken down in your digestive system and then used by your body's cells. By the time these chemical components reaches your cells they no longer resemble anything that you've eaten and whatever is left is discarded in your poop and pee.

So, does this mean you can eat whatever you want? No.

Eating fatty and greasy foods is not good for you, nor is not exercising, which is what the picture is trying to convey, but it's overshadowed by the woo above, but the what the second sentence says is correct because if all you eat is junk food then all you'll have is a junk body.