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The historic importance of vitamin C deficiency relates to occurrence on long sea-going voyages, when the ship food supplies had no good source of the vitamin. Deficiency results in scurvy when plasma concentrations fall below 0.2 mg/dL, whereas the normal plasma concentration range is 0.4 to 1.5 mg/dL.
Vitamin B 2 was tentatively identified to be the factor necessary for preventing pellagra, but that was later confirmed to be due to niacin (vitamin B 3) deficiency. The confusion was due to the fact that riboflavin (B 2) deficiency causes stomatitis symptoms similar to those seen in pellagra, but without the widespread peripheral skin lesions ...
This category reflects the organization of International Statistical Classification of Diseases and Related Health Problems, 10th Revision. Generally, diseases outlined within the ICD-10 codes E50-E56 within Chapter IV: Endocrine, nutritional and metabolic diseases should be included in this category.
Vitamin B12 deficiency symptoms . Vitamin B12 deficiency has a few hallmark symptoms, according to doctors: Lack of energy. Mental fatigue. Nausea, vomiting, or diarrhea. Lack of appetite. Weight loss
Dietary supplements containing all eight are referred to as a vitamin B complex. Individual B vitamins are referred to by B-number or by chemical name, such as B 1 for thiamine , B 2 for riboflavin , and B 3 for niacin , [ 1 ] [ 2 ] while some are more commonly recognized by name than by number, such as pantothenic acid (B 5 ), biotin (B 7 ...
All the vitamins were discovered between 1913 and 1948. Historically, when intake of vitamins from diet was lacking, the results were vitamin deficiency diseases. Then, starting in 1935, commercially produced tablets of yeast-extract vitamin B complex and semi-synthetic vitamin C became available. [8]
The investigation into the relationship between cardiovascular disease (CVD) and vitamin B 12 has been limited, and there is still controversy as to whether primary intervention with vitamin B 12 will lower cardiovascular disease. [64] Deficiency of vitamin B 12 can impair the remethylation of homocysteine in the methionine cycle, and result in ...
A 2020 study of more than 20,000 adults published in the medical journal BMJ Open found no difference in disease or health ... Vitamin D deficiency adversely affects bone health and results in ...