Yes Igggi, its always good to ask about research.
Here is some research into link of stress and miscarriage:
Proc Natl Acad Sci U S A. 2006 March 7; 103(10): 3938?3942.
Published online 2006 February 22. doi: 10.1073/pnas.0511183103
PMCID: PMC1533790
Physiology, Anthropology
Cortisol levels and very early pregnancy loss in humans
Pablo A. Nepomnaschy,??§ Kathleen B. Welch,¶ Daniel S. McConnell,?‖ Bobbi S. Low,? Beverly I. Strassmann,,** and Barry G. England???
Author information â–º Article notes â–º Copyright and License information â–º
Life events and miscarriage.
T O'Hare and F Creed
- Author Affiliations
University of Manchester Department of Psychiatry, Manchester Royal Infirmary.
Risk factors for first trimester miscarriage--results from a UK-population-based case-control study.
Maconochie N, Doyle P, Prior S, Simmons R.
Stress triples threat of an early miscarriage
By Sarah Womack, Social Affairs Correspondent12:01AM GMT 23 Feb 2006? Www.telegrah.co.news
Stress and immune mediators in miscarriage
P.C. Arck1,3, M. Rose1, K. Hertwig2, E. Hagen1, M. Hildebrandt1 and B.F.
Accepted April 4, 2001.
To name but a few....
Our sympathetic nervous system is switched on when we are stressed- which means our bodies are ready to "fight or flee" a stressful situation, not feed or breed or rest and repose as it is in parasympathetic mode.
Studies have shown that cortisol, a hormone that elevates during times of stress, may cross the placenta and interfere with the development of the embryo in early stages of pregnancy.
Sadly, obviously there are many reasons for miscarriage, stress can be a contributing factor for some people but not everyone as some people's systems are better at dealing with stress than others. .
Ps. B12 is found in dairy and eggs, but best and highest form is in meat and fish (chicken 2mcg, sardines 25mcg).
As regards protein being important in pregnancy it IS important, pregnant women need about 70 grams (g) of protein per day (Non-pregnant women: about 45 g). Protein is made of amino acids which are the fundamental building blocks of our cells and our babies cells.
I stand corrected on Quorn being mycoprotein-but watch for salt, fillers and sulphites-almost as bad as nasty sausages!
I can't see a healthy vegetarian diet being a miscarriage risk.