Written by Gabriele Dennert and the CAM-Cancer Consortium.
Updated February 8, 2017


Is it safe?

Adverse events

No adverse effects were reported in the above mentioned case series.3,15

The use of colostrum also seemed safe in studies with healthy volunteers or athletes.16,17

In a study with Alzheimer patients, in 30% of the 33 participants neuropsychological effects (anxiety, speech flow disturbances or insomnia) were observed during the first 3 to 4 days after commencement of colostrum intake.18


Patients with allergies to dairy products should not use colostrum.


No interactions with drugs have been reported.


Non-pasteurized animal colostrum as milk product may contain infectious germs and their trading and manufacturing is regulated by hygiene standards. Human colostrum may transmit HIV and cytomegalovirus.6

Other problems or complications

No data are available for the use of colostrum in pregnant or lactating women.

Citation Gabriele Dennert, CAM-Cancer Consortium. Colostrum [online document]. http://ws.cam-cancer.org/The-Summaries/Dietary-approaches/Colostrum. February 8, 2017.


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  3. Lewison EF, Brown RW, Thomas JW, Sykes JF, Ovary Z: “Protective” colostrum in the treatment of patients with advanced breast cancer. Archives of Surgery 1960; 81: 169/997-176/1004.
  4. Sloan Kettering Center: Bovine colostrum [online document]. http://www.mskcc.org/cancer-care/herb/bovine-colostrum, last accessed 8th February 2017.
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  16. Otto W, Najnigier B, Stelmasiak T, Robins-Browne RM: Randomized control trials using a tablet formulation of hyperimmune bovine colostrum to prevent diarrhea caused by enterotoxigenic Escherichia coli in volunteers. Scandinavian Journal of Gastroenterology 2011; 46: 862–868.
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