Vitamin D Prevents Cancer: Is It True?

Where does this leave people who live in countries without much sunlight such as the UK?

these amounts are too low,you get 20 000IU just for 10 minutes of sunbathing, humans need 50 000IU of vitamin D every day. I bought 100 of such capsules for 30$

I have erectile dysfunction and psorisis which is caused by lack of vitamin D. Can I take 50 000IU per day?

Thank you

I am still waiting for your reply. Perhaps when you see that medicine knows no root cause of any disease, I will be willing to offer you my proof. Till then, I am happily awaiting your answers. Thanks.

Ahhh, the "I have secret mystical knowledge which you are not ready for, because you do not already agree with my previous unsupported assertion" trope. Nice-I'm glad that type of philosophy works for you.
Do yourself a favor, pick up *any* basic college-level biology text and read the section on the immune system. You'll get a far better explanation with pictures and diagrams, than anyone can offer via comment boxes with tiny character limits/Take a bio class, you might find it interesting.

So, you claim the infection is the root cause? Please provide the cause of that infection. Why is it that our immune system is unable to fight it off? Since our immune system is fighting numerous bacterias and viruses on a daily basis, why is it that some of them cannot fight effectively? When you give me a precise answer to this, I may believe that you know the root cause. Thanks.

Infection is the proven root cause of *some* diseases. For why a particular individuals' immune system failed to protect them from some disease, that is going to vary depending on the individual and the disease. The person could have been immunocompromised, they could have had no previous exposure to the pathogen (or a antigenically similar organism). And again, any immunology textbook (or even just basic biology) will to a fine job explaining this - YouTube forums aren't the ideal format

i am looking for nice guys who want to chat or give me a call

@SexxyyAmberri , WHAT DOES LOOKIN' FOR A GUY HAVE TO DO WITH THE VITAMIN D?