SCIENTIA.

With the consumption of processed sugar increasing from 40 pounds to 147 pounds from 1913 to 1999 and dairy product consumption increasing from 294 pounds to 605 pounds, there are no surprises as to why tooth decay was on the rise and coronary heart disease experienced a boom in the 1960s.
 
Drugs such as lipitor have been prescribed much more commonly to solve the issue, making it the most prescribed drug in the world, but no obvious improvements have been seen. The answer is clear - we need to address the root cause: our diet. 
 
The idea of reducing or eliminating the consumption of refined, processed and animal based food was researched in depth by Doctor Colin Campbell and Doctor Caldwell Esselstyn. They believed that certain diseases can be prevented and sometimes reversed by adopting a plant based diet. The two doctors prepared an investigation involving 3 groups of rats. Initially, they tested two groups of rats by feeding half of them 20% casein (the main protein found in dairy products) and the other half 5% casein. After a total of 12 weeks, it seemed to be the case that the rats being fed 20% casein had a greatly enhanced level of early liver cancer growth. On the other hand, the 5% casein group had no evidence of liver cancer development whatsoever. Extending on their first investigation, the doctors decided to feed a new group of rats by alternating between 5% casein and 20% casein. This concluded that the size of tumour can increase and decrease. Hence, they believed diet can reverse some diseases (eg. cancer)