Publications and Resources. Read the groundbreaking 1977 publication â Phylogenetic structure of the prokaryotic domain: The primary kingdoms ,â by Carl R. Woese and George E. Fox, in which Archaea, the third domain of life, is identified.
Youâre quite right that cod liver oil is a good source of vitamin D. According to the National Institutes of Health, it gives you 1,360 IU per tablespoon (I now recommend 2,000 IU daily). However, at least some kinds of cod liver oil provide as much as 13,500 IU of vitamin A, and thatâs way too much. The Upper Limit of vitamin A set by the Food and Nutrition Board of the National Academy of Sciences is 10,000 IU per day.
Cod liver oil helps to elevate serum levels of alkaline phosphatase. Photo Credit Hunterann/iStock/Getty Images. Alkaline phosphatase, or ALP, is a protein found in all body tissues. The bones, liver and bile ducts usually contain higher concentrations of ALP than other body tissues. Normal ALP levels range from a low of 44 international units per liter to a high of 147 International Units per Liter, according to MedlinePlus. Certain foods can raise ALP levels, which can have an effect on ALP blood test results.