Actually, what happened in the last 100 years, when industrialization resulted in a massive increase in food production and our diets lacking essential nutrients but rich in calories.
New frontiers in genomics tells us that food is not merely fuel for our bodies, but it has a far more important role: it talks to our organism sending messages of health or disease.
Science-wise, not only did negatives effects of modern nutrition rise over the last few decades, but also did the preventive and therapeutic ones of natural foods.
It has been discovered that substances found in food can interact with our genes and they can even modulate cellular responses.
That is the field of nutrigenomics, a subject which is revolutionizing the way we think about food and which gives us the skills to use nutrients in order to “repair” our biological background so as to block diseases and support health.