Written by Keith Bishop, Clinical Nutritionist, Cancer Coach, and Retired Pharmacist

Cancer cells can remarkably manipulate their environment to support their growth and spread. One key component of this environment is collagen, a significant protein in the extracellular matrix (ECM). Collagen provides structural support and is crucial in cancer progression and metastasis.

I want to share my concerns since collagen peptide protein powders are popular. 

Collagen peptide proteins, derived from enzymatic hydrolysis of collagen, provide high doses of type I and III collagen. These collagens are particularly significant in cancer progression, as they contribute to the structural integrity and stiffness of the tumor microenvironment. Cancer cells can exploit these collagen-rich environments to enhance their adhesion, migration, and invasion capabilities, promoting tumor growth and metastasis. Studies have shown that cancer cells can utilize collagen peptides to create a protective extrace...