I saw that list a while ago and it made me think many things, lets see if I can get them down coherently
1. Aromatherapy.
I´m a clinical aromatherapist, it is just wrong to advise women to steer clear of it during pregnancyit can be of great help for many problems and just plain enjoyable providing information is sought (of course what I am talking about here is the external use of essential oils as per the British model).
Whilst I´m here I can provide that information. Aromatherapists such as myself are not allowed by condition of our insurance to practice on women in the first trimester, this is not because there is any proof to suggest using aromatherapy, in accordance with ones training, is harmful during this time, it is just that this is when MC can naturally occur (something around 2/3 of pregnancies - most in very very very early stage). If you have a MC you naturally look for an explanation, if you happened to have just had a massage you might ascribe that as the cause - and frankly insurers are not going to take that risk.
There are oils to be avoided during pregnancy. Most of these are not available on sale to the general public and again are prohibited from use by insurers because they are generally considered toxic.
I have a very boring book that lists both research and anecdotal evidence of toxicity of essential oils. In the profession it is considered the last word on the subject.
Here is the list of oils proven with research or through hospital reports to be toxic during pregnancy:
Camphor (white), Ho leaf (camphor/safrole ct), Hyssop, Indian dill, Parsley (leaf and seed), Spanish sage, Savin.
I have never seen any of these available for general purchase.
The same book urges caution with the following:
Wormwood, Lavedula stoechas, lavender cotton, oakmoss, treemoss.
Again not likely to be found in the shops or in use by your average practitioner.
Completely without any evidence (and usually by way of extrapolation from data concerning the internal consumption of vast quantities of the plant of essential oil itself regarding either toxicity or hormonal action), the following are often on do not use lists :
Basil, Birch, Atlas Cedarwood, Clary sage, Jasmine, Juniper berry, Sweet marjoram, Myrrh, Peppermint, Rosemary, Tarragon, Thyme.
2. All herbal teas
My lecturer in France (a professor in naturopathy at the University in Lausanne) said that basically any substance becomes a medicinal dose if taken in great enough quantity. The odd cup of herbal tea at the usual strength is not going to cause harm, if you drink it several times a day it will become like taking a medicine....the effect of that will depend on the herb itself.
3. All medicines.
Without proper guidance of course not.
4. Alcohol
There is plenty of research out there (mostly done by the Danes - they have a bit of a bee in their bonnet about it), that explains what the effects of alcohol use are on the unborn child. Its bad news, but the occasional glass of wine late on doesn´t hurt, seems to sum it up.
5. Alternative therapies
If someone is properly trained (and you can work this out by who they are accredited by), they will be able to handle pregnancy appropriately. It is not a no-no, in fact to say so could be counter productive to someone having a healthy pregnancy and birth.
6. Food stuffs
Interestingly this is very cultural. You won´t find Spanish doctors advising against these things, and the ones listed above are far more commonly consumed here. It seems predominantly to do with the risk of salmonella, e.coli and the like. My take on it is that by being pregnant you are no more likely to get any of these things than if you weren´t pregnant. If the risk of it seems acceptable to me when I am not pregnant then why would I stop when I am pregnant. It´s porcelain doll thinking, and that is what leads us into fearing pregnancy and birth rather than accepting it for the normal state that it is and that leads us into medicalised pregnancy and childbirth.....
The only foodie warning that made any sense to me was liver, the liver is the organ which processes toxins, it also stores vitamin A, large doses of which have been proved to cause birth defects. This is just a commonsense one.
On the other hand AnnPan is right in a way.....for her only. There is a lot to be said for intuition and if AnnPan feels like she should avoid so many things, it may be because she has a gut instinct that her pregnancy needs/needed (I´m losing track on who´s preggers round this place!) to be handled with care and that is valid and an entirely appropriate feeling.