根据给定的文章生成一个摘要，不超过50个单词。


以下是一篇英文文章：

In a new study, researchers found that eating a diet rich in fruits, vegetables, and whole grains is associated with a lower risk of developing type 2 diabetes. The study followed 200,000 adults over the course of 20 years, and found that those who adhered to a healthy diet had a 30% lower risk of developing the disease than those who did not.
Eating fruits, veggies, and whole grains lowers type 2 diabetes risk. Study on 200K adults found a 30% lower risk with a healthy diet over 20 years.