Colorectal Cancer

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•Last Updated: November 20, 2025

Colorectal cancer (CRC) occurs when tumors form in the lining of the colon or rectum (which together make up the large intestine). Symptoms include a change in bowel habits, fatigue, and unexplained weight loss. CRC is diagnosed after a physical exam of the colon and rectum. It can be treated in a variety of ways, including surgery, immunotherapy, and chemotherapy.

Fact-checked by:

Last Updated:November 20, 2025

Research Snapshot

24 references on this page

2,206 participants in 10 trials and 3 meta-analyses

Examine Evidence Grades

AC-Reactive Protein (CRP) + 2 more

BBody Mass Index (BMI) + 7 more

C16 outcomes

D12 outcomes

F5 outcomes

Overview

What is CRC?

What are the main signs and symptoms of CRC?

How is CRC diagnosed?

What are some of the main medical treatments for CRC?

Have any supplements been studied for CRC?

How could diet affect CRC?

Are there any other treatments for CRC?

What causes CRC?

Examine Database: Colorectal Cancer

Intervention	Health Outcome	Evidence
Curcumin	1 outcome	2 Studies
Kefir	16 outcomes	2 Studies
Ketogenic Diet	10 outcomes	2 Studies
Red Clover Extract	4 outcomes	2 Studies
Creatine	2 outcomes	1 Study
Ginger	2 outcomes	1 Study
Glutamine	6 outcomes	1 Study
Probiotics	2 outcomes	1 Study
Reishi	1 outcome	1 Study