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# Cancer patients should limit protein intake
- URL: https://www.foodconsumer.org/cancer_patients_should_limit_protein_intake_0807160735/
- Published: 2016-08-07T08:11:00.000Z
- Updated: 2026-09-15T14:39:50.000Z
- Description: Researchers at Washington University in St. Louis report that restricting dietary protein slowed prostate and breast tumor growth by up to 75 percent in human xenograft models, and that plant-derived protein promoted growth less than animal protein.
- Author: Food Consumer
- Tags: Food, Nutrition, #vivvo-import

Researchers at Washington University in St. Louis, MO found some evidence suggesting that cancer patients can slow the growth of prostate cancer and breast cancer by up to 75% simply restricting intake of protein. They also found that plant-derived protein is less capable of promoting cancer growth than animal-derived protein.

This study suggests that the very first thing cancer patients can do after diagnosis is using a low-protein vegetarian or vegan diet. Some patients with prostate cancer or breast cancer who followed a raw vegetarian or vegan diet along with some supplemental intervention had their disease cured without resorting to conventional treatments such as chemotherapy and radiation. 

[Dietary protein restriction inhibits tumor growth in human xenograft models of prostate and breast **cancer**](http://digitalcommons.wustl.edu/cgi/viewcontent.cgi?article=3133&context=open%5Faccess%5Fpubs&ref=foodconsumer.org)

[L Fontana](https://scholar.google.com/citations?user=q7oQtGIAAAAJ&hl=en&oi=sra&ref=foodconsumer.org), RM Adelaiye, AL Rastelli, KM Miles… - 2013 - digitalcommons.wustl.edu