Veterans and Prostate Cancer: What You Need to Know – Interview with Mike Crosby
Mike Crosby, Ancan Advisory Board Member, is a retired Navy commander and a prostate cancer survivor. Crosby is the founder of Veterans Prostate Cancer Awareness (VPCa), a nonprofit organization dedicated to educating veterans about prostate cancer screening and treatment options.
He is passionate about raising awareness about prostate cancer, particularly among veterans, and has spoken publicly about his experiences and the importance of early detection and treatment. He recently did an interview on KNTV about what veterans need to know about their increased risk of prostate cancer.
If you have a few minutes, click here or watch above.
Is It OK to Take Supplements After a Prostate Cancer Diagnosis? by Stuart Jordan
We were recently asked by a newly diagnosed member of our group—who is preparing to begin treatment—about a dietary supplement he has been taking. His question had two parts: Could this supplement help with prostate cancer? And just as important, is it safe to keep taking it now?
It’s a fair question, and a very common one. Many supplements are marketed as supportive of prostate health, metabolism, or weight management, and it’s easy to assume they might be helpful during cancer treatment.
In my day job as publisher of the Wellness Letter, we often see how supplement claims outpace the science behind them. That’s why we rely on evidence-based research as the final word when exploring questions like these.
When we look closely at the research, the picture is clearer than the marketing suggests. So far, no dietary supplement has been shown in solid human studies to prevent, treat, or slow the progression of prostate cancer once diagnosed. Some supplements that once sounded promising haven’t held up in careful trials. Others affect lab markers, such as PSA, without improving outcomes that truly matter. In fact, some supplements—like high-dose vitamin E or selenium—have actually shown potential harm in trials.
Safety is just as important. Supplements and over-the-counter products can interact with medications, affect lab results, or interfere with how treatments work. This matters whether a man is on active surveillance, receiving hormone therapy, undergoing radiation therapy, or after treatment. Even products that seem harmless can complicate care if the medical team isn’t aware of them.
That’s why it’s essential to tell your doctors about every supplement and over-the-counter product you’re taking, not just prescriptions.
Instead of relying on supplements, focusing on overall health—through diet, physical activity, weight management, and addressing true deficiencies—offers a safer, better-supported path, especially when coordinated closely with your medical team.
Empowered Patient Podcast: Virtual Support Groups Remove Barriers Encourage Sharing Honest Experiences to Fight Misinformation with Rick Davis, AnCan
AnCan founder, Rick Davis, was recently featured in the Empowered Patient Podcast with Karen Jagoda. This show explores the cutting edge of healthcare, highlighting innovations in generative AI and the latest breakthroughs in therapeutics and vaccines, and explores a shifting landscape where providers, pharma, and payers are prioritizing patient empowerment.
Rick explains, “The mission is to make each person and each patient a better advocate for themselves. That’s really what we try to do, and we do that through empowering patients with peer knowledge. We introduce patients to other peers who have been through what these people are facing right now, not only patients, but also their care partners, and through their experience, we hope that these patients and care partners will become more expert in managing their own situation.”
(Here is my take on this article Therapeutic Use of Cannabis and Cannabinoids A Review JAMA Network, 11/26/25. On a personal side, I use CBD to help me sleep, and with a little (5%) addition of THC, it is a great anxiety calmer – Sally Torgeson, AnCan Blood Cancer Moderator & Multiple Myeloma Coach)
Unapproved Cannabis
The FDA has NOT approved the cannabis plant (botanical marijuana) for any medical use or indication.
Because it is classified as a Schedule I controlled substance under federal law, the FDA has not found it to be safe or effective for the treatment of any disease or condition [1.1, 1.7].
It is currently illegal to market CBD by adding it to food or labeling it as a dietary supplement in interstate commerce [2.1, 2.5].
FDA-Approved Cannabinoid Drugs
The FDA has approved a small number of prescription drugs containing either a purified cannabis-derived compound or synthetic cannabinoids:
Epidiolex (Cannabidiol or CBD): The only FDA-approved drug that contains a purified substance derived directly from the cannabis plant. It is approved to treat seizures associated with Lennox-Gastaut syndrome, Dravet syndrome, and Tuberous Sclerosis Complex in patients one year of age and older [1.8, 2.1].
Marinol and Syndros (Dronabinol): Contain synthetic Δ9-tetrahydrocannabinol (THC). Approved for:
Nausea and vomiting associated with cancer chemotherapy in patients who have not responded to conventional antiemetic treatments [2.2, 2.3].
Anorexia associated with weight loss in patients with HIV/AIDS [2.3].
Cesamet (Nabilone): Contains a synthetic substance that is chemically similar to THC. Approved for chemotherapy-induced nausea and vomiting [1.1, 2.3].
Regulatory Context
The FDA maintains its authority to regulate products containing cannabis or cannabis-derived compounds, even those derived from hemp (cannabis with less than 0.3% THC), under the Federal Food, Drug, and Cosmetic (FD&C) Act [1.4].
The FDA supports the development of new drugs through proper clinical trials to ensure they meet standards for safety and effectiveness [1.1, 2.4].
FDA-Approved Cannabinoid Drugs and Their Conditions
* Nausea and vomiting caused by cancer chemotherapy (when other antiemetics have failed) * Anorexia (loss of appetite) associated with weight loss in patients with HIV/AIDS
Cesamet (Nabilone)
Synthetic cannabinoid (similar to THC)
* Nausea and vomiting caused by cancer chemotherapy (when other antiemetics have failed)
Key Takeaway
Epidiolex is the only drug approved that contains a substance derived directly from the Cannabis plant (CBD). It represents the strongest evidence for cannabinoid efficacy in reducing seizure frequency in certain rare forms of epilepsy [1.1, 1.2].
The synthetic THC compounds (Dronabinol and Nabilone) are used primarily as a last resort for severe nausea/vomiting related to chemotherapy and for appetite stimulation in AIDS patients [1.2, 2.8].
The FDA has not approved the use of the whole cannabis plant for any medical condition, stressing the importance of standardized, tested pharmaceuticals for patient safety and proven effectiveness [1.7].1
Off-Label Use vs. Unapproved Use
1. Off-Label Use (Legal and Regulated)
This applies only to drugs that the FDA has already approved.
What it is: Using an FDA-approved drug (like Epidiolex, Marinol, or Cesamet) for a condition, dose, or patient population that is not specifically listed on the drug’s official label.
Legality: It is legal for a licensed physician to prescribe an approved drug for an off-label use if they believe it is medically appropriate for their patient.
FDA Position: The FDA does not regulate the practice of medicine; however, the manufacturer cannot market or promote the drug for the off-label use. The safety and efficacy for the off-label use have not been verified by the FDA’s rigorous testing process.
Example: A doctor prescribing Marinol (Dronabinol), which is approved for nausea from chemotherapy, to a patient for chronic pain. The drug is approved, but the condition (chronic pain) is not on the label.
2. Unapproved Use (Non-FDA Approved Products)
This applies to the cannabis plant itself and most CBD/cannabinoid products on the market.
What it is: Using the whole cannabis plant (botanical marijuana) or non-FDA-approved cannabis-derived products (like most CBD oils, edibles, or topicals) for any medical purpose.
Legality:
Federal: The whole plant is a Schedule I controlled substance and is not federally approved for any medical use.
State: Use may be legal under state medical or recreational cannabis laws, but this does not change its status as an unapproved drug under federal FDA law.
FDA Position: The FDA considers these products unapproved drugs and/or illegally marketed products (especially when CBD is added to food or marketed as a dietary supplement), as they have not been tested for safety, effectiveness, or quality assurance.
Example: A patient using a CBD tincture (which is not Epidiolex) to treat anxiety, or using THC flower to help with multiple sclerosis symptoms.
To correspond with Sally, please send an email to info@ancan.org, and we’ll be sure to send along.
CNTV’s recent video features an interview with AnCan founder, Rick Davis. He explains that he started AnCan after his own diagnosis in 2007, after realizing inadequate support options, especially for those in remote areas. AnCan aims to eliminate barriers to entry for its various support groups, which range from cancer to chronic diseases. AnCan empowers patients to “Be your own best advocate” by providing them with the knowledge to speak confidently with their healthcare providers and offering peer-to-peer support.
Check out our Veterans and mental health too, including art and creative writing classes. All AnCan sessions are free and all except the Art Class are drop-in – no pre-registration.
Take a look at the recording of our latest webinar presentation featuring guest speaker Dr. Jonathan Epstein, MD, a leader in Advanced Uropathology. Thanks to guest panelists Dr. John Antonucci, MD, Dr. Randall Jones, PhD, and Howard Wolinsky.
Reliable biopsies are critical to selecting the right treatment at all stages of prostate cancer – we’re talking needle tissue, not blood, btw. Get it wrong and you may get too much or too little treatment.
Reading pathology is part art and part science! AnCan Advisory Board Member, Dr. Jonathan Epstein is globally acknowledged to have the best eye in the genitourinary pathology world. AnCan frequently refers men to him for a 2nd opinion. His presentation will include:
Getting the most out of a 2nd Opinion
The relevance of cribriform, intraductal, ductal, & small cells
AnCan thanks the following sponsors for making this recording possible: Bayer, Novartis, Johnson and Johnson, Myriad Genetics, Telix, Blue Earth Diagnostics, and Foundation Medicine. Views expressed in this Recording are solely the opinion of AnCan Foundation, our Moderators, and Participants.
AnCan does not accept sponsored promotions. Any drugs, protocols, or devices discussed are based solely on anecdotal peer experience or clinical evidence. AnCan cannot and does not provide medical advice. We encourage you to discuss anything you hear in our sessions with your own medical team.
AnCan reminds all Participants that Adverse Events experienced from prescribed drugs or protocols should be reported to the pharmaceutical manufacturer or the FDA Adverse Event Reporting System (FAERS). To do so, call 1-800-332-1066 or download the interactive FDA Form 3500 https://www.fda.gov/media/76299/download
To SIGN UP for any of our Virtual Support groups, visit our Contact Us page
Off-Label Use vs. Unapproved Use
