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define about the ascorbic acid vitamin cascorbic acid was discovered as the anti-scurvy vitamin vitamin c chemical names ascorbic acid and ascorbate
define excretion of methyl malonic acid in urine methyl malonil aciduria methyl malonic acid is found only in traces in normal urine 1-2 mgday in
define criteria for assessment of vitamin b12 statuslow serum or plasma levels of vitamin b12 should be the first indication of poor status and
define the recommended dietary allowance for vitamin b12 rdavitamin b12 deficiency is common in true vegans who can be treated with small doses since
define the toxicity of vitamin b12intake of 1000 mug vitamin b12 has never been reported to have any side-effects similar large amounts have been
define vitamins b12 deficiency in vegansbecause plants do not synthesize vitamin b12 individuals who consume diets completely free of animal products
define symptoms in nervous system of pernicious anaemiaparasthesia numbness and tingling occurs in fingers and toes occasionally there are
define symptoms in stomach and mouth of pernicious anaemiastomach the cells which secrete acid and enzymes are atrophied the gastric secretions are
define the symptoms in bone marrow of pernicious anaemiathe nucleated red cells of the marrow are greatly increased the successive nucleated cell
define the symptoms in blood of pernicious anaemiablood the rbc count is low-15-25 million per mm3 normal range is 45- 55 million per mm3 the average
define about the deficiency of cyanocobalaminmalabsorption of vitamin b12 can occur at several points during digestion by far the most important
define the bioavailability of cyanocobalaminvitamin b12 is widely available availability is more from non-vegetarian foods as described earlier under
define absorption storage and elimination of cyanocobalaminvitamin b12 in food is bound to proteins and is only released by the action of a high
explain about the cyanocobalamin vitamin b12vitamin b12 cobalamin cbl is a unique vitamin in human nutrition since its malabsorption leads to the
define interaction of folate with vitamin b12vitamin b12 for the conversion of folic acid to folinic acid vitamin b12 is required vitamin biz
define interaction of folate with vitamin cvitamin c anaemia is observed in vitamin c deficient patients normochromic normocytic or macrocytic or
explain the criteria for assessment of folate statusred cell folate continues to be used as an important index of folate status it is suggested that
explain the toxicity of folatethere is no evidence to suggest that it is possible to consume sufficient natural folate to pose a risk of toxicity
explain the bioavailability of folatebioavailability of folate from naturally occurring food sources is variable and frequently incomplete as
how folate is important for pregnant womenfolate is also important for pregnant women low blood levels of folate during pregnancy can cause neural
explain the functions of folatefolate also known as folic acid is essential for good health folate requiring reactions include those involved in
explain the absorption storage and elimination of folatefolic acid is readily absorbed from the small intestines through the portal vein and
define interaction of pyridoxine with ascorbic acid and leucineascorbic acid vitamin b6 metabolism increases with higher levels of vitamin c intake
explain interaction of pyridoxine with carbohydratespyridoxine is involved in glyconeogenesis through its action in transaminase reactions low levels
define criteria for assessment of pyridoxine statusvitamin b6 status is most appropriately evaluated by using a combination of indicators namely