Vitamins - add to the list of fake news?

[Maverick1]

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3309636/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241405/

Vitamin D and Calcium:

https://www.ncbi.nlm.nih.gov/pubmed/30180273

https://www.everydayhealth.com/colu.../are-vitamin-supplements-really-bioavailable/