E, I love you...
As E said, to a degree, the amount if kcals you consume matters. Obviously if you are eating far under your nutritional requirements you will not grow.
But what the average person doesn't consider is the nutritional density of their foods and how well they are going to he used. For example, of you eat straight sugar for all of your carbs versus things like oats, sweet potatoes, rice, fruits, sported grain bread... Etc you are going first not receive any micro nutrients and ad idly you will be spiking insulin levels, which if done over a prolonged period of time can lead to insulin resistance.
Another considering is that if you do not buy organic and buy fatty cuts of meat, the chemicals and toxins are stores in the fatty tissue.
Also consider adding in probiotics to your diet since you are what eat, you are what you are able to absorb.