# What is Modified citrus pectin (MCP) Modified citrus pectin (MCP) is a substance derived from the pith of citrus fruits, such as oranges, grapefruits, and lemons. It is a type of dietary fiber that has been modified to have smaller molecules, allowing it to be more easily absorbed by the body. In cancer treatment, MCP has been studied for its potential benefits. It is believed that MCP might help prevent the spread of cancer cells and inhibit tumor growth. MCP is thought to work by binding to a protein called galectin-3, which is involved in various processes related to cancer progression, including cell adhesion, angiogenesis (formation of blood vessels), and metastasis (spread of cancer to other parts of the body). # Matt's notes on Modified citrus pectin (MCP) I have been taking MCP at the recommendation of my naturopath oncologist. It tastes like crap and is expensive, but she advocates highly for it to prevent metastasis. # What research is there on Modified citrus pectin (MCP)? 1. A study published in the journal "Integrative Cancer Therapies" in 2014 investigated the effects of MCP in prostate cancer patients. The researchers found that MCP treatment resulted in a significant decrease in PSA (prostate-specific antigen) levels, which are often elevated in prostate cancer. The study suggested that MCP might have potential as an adjuvant therapy in prostate cancer management. URL: [https://pubmed.ncbi.nlm.nih.gov/24415621/](https://pubmed.ncbi.nlm.nih.gov/24415621/) 2. Another study published in the journal "BMC Complementary and Alternative Medicine" in 2011 explored the effects of MCP in patients with advanced solid tumors. The researchers observed a decrease in galectin-3 levels after MCP treatment and suggested that MCP might have a role in preventing the spread of cancer cells. URL: [https://pubmed.ncbi.nlm.nih.gov/22004419/](https://pubmed.ncbi.nlm.nih.gov/22004419/) # Suppliers and resources on Modified citrus pectin (MCP) I've been getting it from Amazon, but have found availability somewhat limited of late.