Dairy and prostate cancer: Conflicting information

If you do a deep dive on soy, hold on to your hat because even THAT is controversial as far as PCa goes.
So 2/3 cup of milk is OK, but a cup isn’t? I don’t doubt for a moment that you read that on a reputable site but just think about how far fetched that is…I read a study that said lowfat milk is bad, but lowfat yogurt is OK. I mean, do they even consider the actual person drinking the milk or eating the yogurt??!!
And what about all the wonderful anti-cancer effects of CLA’s in organic grass fed cow’s milk? They don’t count now?
I’m telling you, surfer, all this contradictory nutritional info is starting to sound downright schizoid!!
Phil

I posted this link on another thread. Dairy, per se, potentially induces PC growth because it contains a hormone called IGF-1. Other cancer types benefit from dairy, however. The article is lengthy but not too technical.
https://www.saragottfriedmd.com/does-meat-cause-cancer-revisiting-the-meat-igf-1-and-cancer-connection/?doing_wp_cron=1744654776.7533431053161621093750

My apologies for this late follow-up report on my consultation with a Mayo cancer dietitian on animal-based proteins for prostate cancer patients.

Three weeks ago I had a video conference with a Mayo cancer dietitian to address whether the protein trio of "dairy, eggs and red meat" represented a legitimate concern for prostate cancer patients. His short answer was "yes and no" with the devil being in the details.

The cancer dietitian was aware of the controversy. However, he also acknowledged prostate cancer patients on androgen deprivation therapy have significant needs for consuming quality protein sources. So how did he recommend navigating this controversial path? By focusing on minimizing the common thread amongst these three types of quality protein - animal fats.

More specifically, the dietitian asserted his belief that inflammatory omega 6 animal fats are the primary problem for prostate cancer patients. If animal-based proteins were to be selected he encouraged me to consider (1) lower animal fat alternatives and, where available, (2) selecting omega 3 anti-inflammatory animal fats instead of omega 6.

From a practical perspective, if animal sources of protein were selected then he suggested focusing on the following:
- grass raised beef sources (high in omega 3 fats),
- pasture raised chicken eggs (high in omega 3 fats),
- skim milk (no fat),
- whey protein (very little fat).

The cancer dietician liked plant-based protein sources, but noted it's significantly harder to combine plant-based protein sources in a manner that achieves a high quality, complete amino acid protein profile. It can be done, but it's often difficult.

I know BUT, I am sure 2/3 was a "choice" since they probably had people answer to questions like "how much milk do you drink in a day : one cup , more than a cup, less than a cup, none". People that answered "less than a cup" and "none" had similar results so they concluded that "less than a cup" is safe. So what to say to general population - you can drink some milk but less than a cup ? Maybe, but than what is less than a cup ? They decided for practical reasons to choose 2/3. Epidemiologists have to use wording that is understandable to majority of the people. There was no statistical difference between "none" and "less than a cup", so 2/3 it is ; ). You would be surprised how results are interpreted and presented, not to mention "adjusted" *ehem , and talking here from personal experience working in a lab.

Milk vs. yogurt - well, if we take into consideration IGF1 factor that previous poster mentioned than it could be that fermentation changes hormone's structure directly or indirectly by acidifying substrate and make it inactive (hormones are proteins, after all) .

Soy milk - yes, but half of a cup will make no difference effecting hormones.

All in all PSA going down more than 2 points was what proved to me that diet and supplements do have an effect. My husband took PSA test again 2 weeks ago and it is still down. His PSA and free PSA ratio is also MUCH better .

What can I tell you - one has to do their best to stop this beast, all the rest is in god's hands ;), being it all crazy or not.