[EllaC]

Just to point something out, you can gain weight even as a vegetarian. My friend has been a vegetarian for his whole life. He used to be slim. Then he started to workout and eat 5 meals a day. Now he looks stronger and bigger than all our common friends. Protein powder is the only supplement he takes. No milk, no eggs... but 100% vegetarian is not 100% healthier. He and his parents have joint and teeth problems

https://medium.com/@Kahn642/10-important-plant-diet-vegan-research-studies-of-2018-15841245cdb7

Vitamin D & Ca - standard diets amounts fall short of daily requirements 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3509480/

"is reasonable to think that calcium and vitamin D affect oral bone in the same way that they affect other bones of the body, and various studies,"

Every diet seems to lacking these key minerals/vitamins

So pleased you posted this. I have mild bone loss due to periodontal issues so I'l use this as a guideline to sensible supplementing