>>4843921 pb
It's not a lie as much as it is someone who doesn't quite understand the science.
Yes you want more oxygen in your blood, you want more alkaline, cancer thrives in acidic, low oxygen states, etc. But causation might've been explained wrong.
A good source for various scientific studies is pubmed. A google search of pubmed cancer and whatever it is you want to study in relation to cancer, like baking soda, gives a lot of studies.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718046/
The simulations support the hypothesis that systemic pH buffers can be used to increase the tumor pHe and inhibit tumor invasion.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5139076/
Combining sodium bicarbonate with rapamycin resulted in increased tumor necrosis, increased cancer cell apoptosis and decreased cancer cell proliferation as compared to single treatment.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2834485/
Bicarbonate Increases Tumor pH and Inhibits Spontaneous Metastases