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Vitamin B 12 deficiency can be determined, but not always. [14] This means it measures forms of vitamin B 12 that are "active" and can be used by the body, as well as the "inactive" forms, which cannot. [150] Vitamin B 12 deficiency can be found within normal levels, so clinical symptoms should be taken into account when a diagnosis is made. [2]
Anemia is a deficiency in the size or number of red blood cells or in the amount of hemoglobin they contain. [1] This deficiency limits the exchange of O 2 and CO 2 between the blood and the tissue cells. [1] Globally, young children, women, and older adults are at the highest risk of developing anemia. [1]
This table does not represent the number of people who "went to bed hungry today." The below is a list of countries by percentage of population with undernourishment , as defined by the United Nations World Food Programme and the FAO in its "The State of Food Insecurity in the World" 2009 report.
The Good Housekeeping Institute tested more than 30 brands of B12 supplements, and chose Nature made B12 1000mcg as the best overall option, and Garden of Life Vitamin Code Raw B12 as the best ...
The National Institutes of Health recommends that the average man consume a mere 2.4 micrograms a day, which is actually the lowest daily recommended dose of any vitamin. “Vitamin B12 ...
Everyone requires a certain amount of B12 depending on their age, starting with .5 mcg per day for infants up to 2.4 mcg for teens and adults and even more—2.6 mcg and 2.8 mcg, respectively, for ...
Vitamin B 12 deficiency has been observed in between 40% and 80% of the vegetarian population who do not also take a vitamin B 12 supplement or consume vitamin-fortified food. [36] In Hong Kong and India, vitamin B 12 deficiency has been found in roughly 80% of the vegan population.
Over time, a deficiency of B12 can cause problems with balance, confusion, depression, poor memory and possibly dementia, and it can even cause permanent damage to the nervous system, Somers says.