There are SO many benefits of eating a healthy diet. There are "personal mind and body" benefits and "health" benefits.
It is heart breaking that so many people are getting unwell with avoidable diseases. The good news is that you can prevent YOUR risk of many disease by eating a healthy diet and living a healthy lifestyle (exercise and stress.)
There are many, many diseases that we can avoid but the "big nasties" are:
In short, you are far more likely to live longer if you eat healthy food!
Once you start to work on your diet and life style, everything starts to fall into place. Your get thinner, more agile. Those "wobbly bits" disappear. You feel more confident in yourself.
Many people feel happier and more productive as a consequence of eating healthily.