Skip to content
Dr. Grey AI

Protocol · Gastrointestinal Health

Colorectal Polyp Prevention Support Protocol

Calcium and Vitamin D are the core of this stack, with 7 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Colorectal Polyp Prevention Support.

We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.

The stack

9 supplements · none graded yet

Amount listed in this protocol; not a recommendation.

Supplements in the Colorectal Polyp Prevention Support protocol, with the amount the protocol lists, the grade on file and confirmed studies
GradeSupplementAmount listedWhy it’s in the stackEvidence on fileShop
Primary stackThe core of this protocol
CalciumAmount listed: 1,000–1,200 mg daily with food

Binds bile acids and fatty acids in colon; reduces cell proliferation; studied for polyp recurrence prevention

Not graded yet
Vitamin DAmount listed: 2,000–4,000 IU daily (maintain levels 40–60 ng/mL)

May enhance calcium's protective effects; anti-proliferative effects on colon cells; deficiency linked to increased risk

Not graded yet
Supporting stackListed as additions to the core
Fiber (Psyllium, Wheat Bran)Amount listed: 25–35 g total fiber daily from food and supplements

Increases stool bulk; reduces transit time; dilutes carcinogens; produces beneficial short-chain fatty acids

Not graded yet
Omega-3 Fatty AcidsAmount listed: 2–4 g EPA+DHA daily

Anti-inflammatory; may reduce COX-2 and prostaglandins in colon; studied for polyp prevention

Not graded yet
FolateAmount listed: 400–800 mcg methylfolate daily (from food preferred)

Supports DNA synthesis and repair; deficiency may increase colorectal cancer risk; complex relationship

Not graded yet
ProbioticsAmount listed: 10–20 billion CFU daily (multi-strain)

Supports healthy gut microbiome; may produce protective short-chain fatty acids; emerging area

Not graded yet
CurcuminAmount listed: 500–2,000 mg daily with enhanced absorption

Anti-inflammatory; laboratory studies show effects on colorectal cancer cells; limited human trial data

Not graded yet
Green Tea ExtractAmount listed: 300–400 mg EGCG daily

Polyphenols with anti-cancer properties; studied for colorectal adenoma prevention

Not graded yet
SeleniumAmount listed: 100–200 mcg daily

Antioxidant; some observational data suggest lower colorectal cancer risk with adequate selenium

Not graded yet

Shop the evidence-backed picks

Support alongside medical care. These supplements are not a treatment for Colorectal Polyp. If you are being treated for it, talk to your clinician before adding one: supplements can interact with medicines.

Fullscript collectionGut and digestion: evidence-graded picksOpen on Fullscript

Or shop one supplement

Each opens third-party tested products, matched to the dose above where we can.

We earn from purchases made in our Fullscript store, and links to Fullscript, iHerb or Thorne carry our referral, so we may earn a commission at no extra cost to you. Grades come from the research and never change based on what we earn. Full disclosure

How this protocol works

In plain language

Colorectal polyps are growths on the inner lining of the colon or rectum. While most polyps are benign, some types (adenomatous polyps or adenomas) can develop into colorectal cancer over time. Removing polyps during colonoscopy prevents cancer.

TYPES OF POLYPS:

  • Adenomatous (adenomas): Can become cancerous; need removal and follow-up
  • Hyperplastic: Usually not precancerous; small ones often left alone
  • Sessile serrated: Precancerous; require careful surveillance
  • Inflammatory: Related to IBD; not typically precancerous

SCREENING SAVES LIVES:

  • Colonoscopy starting at age 45 (earlier if high risk)
  • Removes polyps before they become cancer
  • Follow surveillance intervals based on findings

LIFESTYLE FACTORS that reduce polyp risk:

  • High-fiber diet (vegetables, fruits, whole grains)
  • Limit red and processed meat
  • Limit alcohol
  • Maintain healthy weight
  • Regular physical activity
  • Don't smoke

MEDICATIONS sometimes used:

  • Low-dose aspirin (discuss with doctor - bleeding risk)
  • NSAIDs reduce polyp risk but have side effects

Calcium with Vitamin D* has the strongest evidence for reducing adenoma recurrence.

Fiber* supports healthy colon function and may reduce risk.

Omega-3 Fatty Acids* have anti-inflammatory effects that may help prevent polyps.

Expected timeline: Prevention is a long-term commitment. Studies showing benefit typically follow patients for 3-5 years. Regular colonoscopy surveillance is essential regardless of supplement use.

Printed from drgrey.ai/protocols/colorectal-polyps. For education only; not medical advice. Talk to a clinician before starting any supplement.