looks like kooky woo to me.

In vitro and in vivo studies suggest that dandelion has lipid-lowering (13), hepatoprotective (14), and antiviral (15) (16) properties. It also has anticoagulant (5), diuretic (10), anti-inflammatory (14), and antioxidant (4) activities. Dandelion root extract has anticancer effects against melanoma (3), leukemia (8) (26), pancreatic cancer (17), and colorectal cancer (25) cell lines. However, human studies are limited.

Memorial Sloan Kettering Cancer center
https://www.mskcc.org/cancer-care/integrative-medicine/herbs/dandelion#references-3

Look at the clinical summary and purported uses tabs.

Human clinical trials on for cancer killing dandelion extract

It is an effective and well known diuretic, plus many other uses.

I am saddened that we only trust what Big Pharma chooses to make available and distrust what Mother Nature provides
It is known.

a panoply of things, many of which are deadly to humans, so I don't assess things based on if they're natural or not. What is criminal, is that in a wealthy country, we don't fund more research on natural products. But then, we get into political issues on the role of government and how funds are allocated.

For my cancer, I had many questions that couldn't be answered because the research needed is not in the interest of Big Pharma, regardless of how many lives it could save. Understandable, they are profit-driven, but again political issue. I don't believe health care should be in the profit sector, but it is, and these are some of the sad results.

I have wept bitter tears over our system.