I'm sorry you found my comment disparaging.
My science teacher was, on paper, perfectly correct. Customers can check the nutritional value of MacDonalds burgers in the leaflets displayed in store. It all looks really good. On paper.
Where he fell down on was in the real world, on practicalities. He focussed only on the scientific data he'd read. He hadn't worked in MacDonalds, or any other fast food establishment. He'd never actually eaten in a MacDonalds restaurant (we asked him
). He had simply read nutritional information provided by the company. He wasn't a nutritionist. He was a Science teacher.
Written information and reports can easily be skewed and biased, depending on who has written them - and often such documents are sponsored by people with vested interests.
If you've worked in organic farming, and have first hand experience of what you write, your opinion holds far more weight than if you are teaching about it from textbooks and texts provided by the companies who want to promote their non-organic view.