Plant-based diets may help prevent 6 diseases

Credit: Unsplash+

Recent research from the Physicians Committee for Responsible Medicine, led by Saray Stancic and published in the American Journal of Lifestyle Medicine, suggests that physicians should have a basic understanding of the benefits of plant-based diets for six major health conditions: weight loss and maintenance, heart disease, cancer, diabetes, Alzheimer’s disease, and COVID-19.

Despite the significance of nutrition in managing these conditions, a survey revealed that 90% of cardiologists felt they lacked necessary training in nutrition.

Weight Loss and Maintenance

A study involving 70,000 participants found that a vegan diet led to an average weight loss of 9 pounds and reduced mortality risk.

Cardiovascular Disease

Animal-based foods, rich in saturated fats and cholesterol, contribute to heart disease. Vegetarian diets were found to reduce LDL cholesterol by 13 mg/dl and lower the rate of heart disease deaths by 24%.


Healthy behaviors, including a diet rich in fruits, vegetables, and whole grains, could reduce breast cancer risk by 50-70%. High-fiber diets decrease colorectal cancer risk, whereas dairy products elevate prostate cancer risk.


A Harvard study showed that plant-based diets could result in a 34% reduction in the risk of developing type 2 diabetes.

Alzheimer’s Disease

Adherence to the MIND diet, which is plant-based, was associated with a 60% lower risk of Alzheimer’s disease.


A Harvard study found that a primarily plant-based diet resulted in a 41% reduction in the risk of severe COVID-19 and a 9% reduction in infections of any severity.

Implications for Healthcare Professionals

While the paper recognizes that physicians don’t need to be nutrition experts, it emphasizes the importance of at least rudimentary knowledge in nutrition, especially concerning plant-based diets.

With diet and lifestyle factors playing a significant role in managing chronic conditions, physicians can be better equipped to guide their patients.

Conclusion and Recommendations

The study makes a compelling case for the adoption of plant-based diets to manage and prevent various health conditions.

It also serves as a call to action for healthcare providers worldwide to emphasize the importance of diet and lifestyle in medical practice. This shift could result in better health outcomes and reduce the burden of chronic diseases globally.

Follow us on Twitter for more articles about this topic.

Copyright © 2023 Scientific Diet. All rights reserved.