On 14/05/2021 07:39, polygonum_on_google wrote:
On Thursday, 13 May 2021 at 16:48:41 UTC+1, GB wrote:
Vegetarians have more favorable levels of a number of biomarkers
including cardiovascular-linked ones total cholesterol, low-density
lipoprotein (LDL) cholesterol, and apolipoprotein A and B than meat-eaters
Total cholesterol and LDL cholesterol concentrations for vegetarians
were 21% and 16.4% lower than in meat-eaters. But some biomarkers
considered beneficial including vitamin D concentrations were lower
in vegetarians, while some considered unhealthy including
triglycerides and cystatin-C levels were higher.
https://www.medscape.com/viewarticle/950911
So, it looks like you are all right! 
"Celis-Morales and his team are currently conducting a further analysis to understand if the vegetarian diet is also associated with a lower risk of cancer, depression, and dementia compared with meat-eaters."
Why the form of words "understand if ... lower risk ..." rather than "find out whether ... different risk ..."?
It looks like are wading in with the lower risk as an assumption. Or that if they found a higher risk, they'd ignore it!
Also, vitamin D is a difficult one these days. We have official advice to take a supplement so we can imagine a relatively high rate of so doing. But of those who do, many vegetarians/vegans might choose a vegetarian/vegan supplement. Until fairly recently, all vegetarian/vegan supplements were vitamin D2
which appear to be significantly less desirable than D3.
If those supplementation issues were not factored in, any results are likely questionable (at best).
And you should take Vit B2 together with Vit D3 and one suitable source
is eggs.