@GirlRaisedInTheSouth
Just wondering if you made your statements with knowledge of the implications of celiac disease for digestion and absorption of many key nutrients, including iron and B12? I would be interested to see the evidence that has led you to "think" this is rubbish?
This paper explains the differences in absorption between heme and non-heme iron academic.oup.com/ajcn/article/91/5/1461S/4597424
but for anyone who can't be bothered following links, here's the relevant bit:
"There are 2 types of dietary iron: nonheme iron, which is present in both plant foods and animal tissues, and heme iron, which comes from hemoglobin and myoglobin in animal source foods. Heme iron is estimated to contribute 10–15% of total iron intake in meat-eating populations, but, because of its higher and more uniform absorption (estimated at 15–35%), it could contribute ≥40% of total absorbed iron (4, 5). Nonheme iron is usually much less well absorbed than heme iron. All nonheme food iron that enters the common iron pool in the digestive tract is absorbed to the same extent, which depends on the balance between the absorption inhibitors and enhancers and the iron status of the individual. It is important, however, to note that not all fortification iron enters the common pool"
For anyone struggling with iron deficiency anaemia, whether veggie, vegan or omnivore, vitamin C is an excellent enhancer of iron absorption, both for heme and non-heme. Try to consume some vitamin C containing food with every meal, or consider a low dose supplement to take with meals.
It is possible to meet all nutritional requirements from a well planned vegan diet for MOST people. The well planned bit is critically important here though, and to plan well you need decent understanding of nutritional science.
For people who already have to restrict their diet due to other health concerns, in particular diseases which affect the digestive tract, it is very ill advised to omit further food groups. Ethics aside, meat and dairy are rich sources of vital nutrients in forms that are easily absorbed by the body.
Also, if you are vegan or vegetarian, you need to take a B12 supplement. There is absolutely none in plant foods. If you grew up eating meat and dairy you will likely have B12 stores in your liver that will sustain you for a few years, but without a supplement you will eventually become deficient. A bacteria derived B12 supplement will ensure your requirements are met though (there's questions over how effective nutritional yeast is as a B12 supplement).
OP - You really do need to balance your own health with your ethical concerns. It does sound like you are very conscious and already doing what you feasibly can to reduce your environmental impact under the circumstances, you have no reason to feel guilty, please don't listen to unqualified people who try tell you otherwise. But if you are considering any further changes to your diet I beg that you speak to an impartial (not vegan biased) dietician first, registered with the British Dietetics Association, you can check their registration here: www.bda.uk.com As a diagnosed celiac your GP might be able to refer you to an NHS dietician, but if not make sure you go with a registered one. Nutritionists are a bit of a murky area, although there are some excellent highly qualified ones, nutritionist is not a protected title like dietician is. Also dieticians are the only ones legally allowed to prescribe dietary recommendations as a means of treatment for a health condition.
For anyone without existing health conditions who can't easily get access to an NHS dietician and would like advice from a nutritionist please use an Association for Nutrition registered nutritionist, you can check their registration here www.associationfornutrition.org
Although not a protected title, the ones registered here have advanced degrees in nutrition (from proper universities) and abide by a code of conduct to adhere to scientific evidence based practice.
Avoid the erroneously named BANT (British association for nutrition and lifestyle medicine) and other nutrition organisations. They do not have the code of practice that British dietetics or association for nutrition have. They will register anyone whose done a Groupon course in nutrition as their qualification.
Anyway, this article explains the differences better than me.
angry-chef.com/blog/my-nutritionist-licks-his-own-butt
I hope this info can help you make an informed choice that prioritises your wellbeing and helps you manage your health conditions.