On Thu, 09 Jun 2011 11:57:44 -0500, Omelet >
wrote:

>Meat is the only "natural" source of Vitamin B-12 which is mandatory for
>your body to make red blood cells. Without it, you will become anemic.
>Slower for men, a lot faster for women due to monthly blood loss.
>
>"Nutritional yeast" is another source of B-12 but after taking a good,
>long look at that stuff, it appears to be fortified with B-12 so that's
>hardly vegan after all. <g>

For B12 sources, here are some and their values:
From: http://ods.od.nih.gov/factsheets/vitaminb12/#h3

Food, type, amount, Micrograms per/severing, Percentage of B12 needed
per/day

Liver, beef, braised, 1 slice, 48.0, 800%
Clams, cooked, breaded and fried, 3 ounces, 34.2, 570%
Breakfast cereals, fortified with 100% of the DV for vitamin B12, 1
serving, 6.0, 100%
Trout, rainbow, wild, cooked, 3 ounces, 5.4, 90%
Salmon, sockeye, cooked, 3 ounces, 4.9, 80%
Trout, rainbow, farmed, cooked, 3 ounces, 4.2, 50%
Beef, top sirloin, broiled, 3 ounces, 2.4, 40%
Cheeseburger, double patty and bun, 1 sandwich, 1.9, 30%
Breakfast cereals, fortified with 25% of the DV for vitamin B12, 1
serving, 1.5, 25%
Yogurt, plain, 1 cup, 1.4, 25%
Haddock, cooked, 3 ounces, 1.2, 20%
Tuna, white, 3 ounces, 1.0, 15%
Milk, 1 cup, 0.9, 15%
Cheese, Swiss, 1 ounce, 0.9, 15%
Beef taco, 1 taco, 0.8, 13%
Ham, cured, roasted, 3 ounces, 0.6, 10%
Egg, large, 1 whole, 0.6, 10%
Chicken, roasted, ½ breast, 0.3, 6%


Here's a short, but interesting article from the Mayo Clinic on B12:

http://www.mayoclinic.com/health/vit...ent-vitaminb12


And another page of B12 facts:

http://en.wikipedia.org/wiki/Vitamin_B12