Non organic foods themselves would do no harm to you unless they contain harmful additives and/or preservatives, chemicals from synthetic pesticides that were sprayed on them, etc. It is also possible that non organic foods are genetically modified and the health effects of GMOs are not known, though there is some anecdotal evidence that they can have adverse health effects in animals and people.
Non organic foods are grown using synthtic pesticides and fertilizers that can harm the enviroment.
Non organic foods are consumed more than organic, though interest in organic foods is growing.
Circumstances that may limit organic foods are they are more labor intensive to grow, the shelf life of processed organic foods may be shorter than non-organic foods, and they cost more than non-organic foods.
Organic foods can be processed, packaged, transported, and stored, but the shelf life may be shorter than non-organic foods, because they do not contain the preservatives that non-organic foods do.
Organic foods are non-GMO. They are grown without the use of synthetic pesticides. They do not contain additives or preservatives that are non-organic and may be carcinogens or otherwise unhealthy. Since pesticides are not used, organically grown food does not cause the harm to the environment and soil that foods produced using synthetic pesticides possibly do.
Fast foods are not organic.
The benefits of selling both non-organic and organic foods lie in the same shop attracting both those customers who want organic as well as those who prefer non-organic products.
Organic foods generally cost more than non-organic foods because they are more labor intensive to grow. Organic foods are, in my opinion, better in quality because they are grown without the use of synthetic fertilizers and pesticides, and processed organic foods contain no additives or preservatives that are not organic. There is a least some evidence that the nutrients in organic foods are greater than in their non-organic counterparts.
You change your diet from non-organic to organic foods by only drinking and eating products that are labeled as organic without chemicals, genetically modified organisms and preservatives.
Organic foods are as limited as possible in inorganic fertilizers, pesticides, and herbicides. They also do not contain growth hormones. Non-organic foods may contain growth hormones and may have been treated with non-organic fertilizers, pesticides, and herbicides.
If the baby food is not labeled "100% organic" some non-organic ingredients are allowed.
Organic foods are as limited as possible in inorganic fertilizers, pesticides, and herbicides. They also do not contain growth hormones. Non-organic foods may contain growth hormones and may have been treated with non-organic fertilizers, pesticides, and herbicides.