dagon wrote:Yes but in the context of this thread you would want to ensure that measure were taken to ensure that there was enough B12 in the diet - this could be more of a problem if there was also a history of alcohol abuse. That is not a reason not to adopt a vegan diet - just a caution.
So many people, vegan or not, have trouble absorbing b-12 that it is a law in Israel that a number of foods have to be fortified with vitmain b-12. As you mentioned, people with a history of alcoholism have trouble getting enough b-12, as do smokers, or anyone over 50. Concerning the last group, it is very difficult for a human body to get b-12 from animal products and it only becomes more problematic as a person's digestive system ages. Hence the need for anyone over 50 to take a supplement to insure their health.
http://www.betterhealth.vic.gov.au/bhcv ... /Vitamin_B
Vitamin B12 (cyanocobalamin)
Vitamin B12 helps to producte and maintain the myelin surrounding nerve cells, mental ability, red blood cell formation and the breaking down of some fatty acids and amino acids to produce energy. Vitamin B12 has a close relationship with folate, as both depend on the other to work properly.
Good sources of B12 – include liver, meat, milk, cheese and eggs, almost anything of animal origin.
Vitamin B12 deficiency – this is most commonly found in the elderly, vegans (vitamin B12 is only found in foods of animal origin) and breastfed babies of vegan mothers and is called pernicious anaemia. Symptoms include tiredness and fatigue, lack of appetite and weight loss, apathy and depression, anaemia, smooth tongue and degeneration of peripheral nerves progressing to paralysis.
B1, B6 and B12 are all very important parts of any diet and factors that anyone with any level of depression and anxiety needs to take in to account. It needs to be considered not only in the context of content of the diet but also how it is cooked. From my understanding B1 and B6 are often destroyed by cooking and by alchol.
The point about b12 is that if really a problem sourcing enough b12 in "normal western diets" as the body requires very little - but what it requires is very important. The good news is that the no animals produce their own B12 - so the supplements are not derived from animals.
The uptake of b12 into the system is affected by certain digestive diseases directly and for some of the medications prescribed to treat gastric problems - both of these are often found in older people (along with the accumulated effects of alcohol). B12 is stored in the liver which is part of the problem with alcohol abuse due to the damage that it does to the liver - just like the precepts this is not talking about drinking to the level of drunkenness. The other way that alcohol plays a part in the subject is that alcohol abuse and poor diet are commonly found in association. This is just part of the reason why alcohol is so bad when considered in the context of health generally and depression in particular.
The issue of exercise was mentioned earlier and it is also useful as part of the long term lifestyle management of these conditions. along side the exercise there is also the question of Vitimin D. As most people have busy life's i think that taking exercise outside helps to time manage to facilitate both of these issues.
@ OP -Sorry about the thread drifts