Bách khoa toàn thư - Dinh dưỡng và sức khỏe tốt - Vần H | H haddock Melanogrammus aeglefinus A lean saltwater fish related to cod. Haddock is an important food fish its white flesh has a pleasant somewhat bland taste that can be prepared in any recipe for cod or flounder. Smoked haddock is called finnan haddie. Haddock is an excellent source of high-quality protein raw oz. 100 g provides 79 calories protein g fat g calcium 23 mg cholesterol 60 mg niacin 3 mg thiamin mg riboflavin mg. hair analysis A convenient reasonably inexpensive preliminary screening tool for detecting mineral imbalances. Because minerals accumulate in hair as it grows hair analysis can be used to screen for accumulated toxic metals including mercury aluminum copper lead and cadmium. Hair analysis also has been used to assess body levels of trace minerals iron copper manganese zinc and to compare minerals in populations living in different regions with differing degrees of pollution and soil depletion of minerals. These hair samples are easily obtainable and analytical methods atomic absorption spectrometry X-ray fluorescence spectrometry among others are sufficiently sensitive to permit accurate analysis of small samples. However hair analysis is a controversial test. Some laboratories do not provide reproducible results and hair is easily contaminated with shampoo conditioners dyes and air pollutants. Moreover findings can be overinterpreted. For example hair levels of some minerals such as sodium and potassium do not correlate with body levels. See also HEAVY METALS. halibut Hippoglossus A flat saltwater fish found in all oceans that is one of the most important food fishes. Resembling a huge flounder the lean flesh is firm with a pleasant flavor and texture. Halibut liver oil is an excellent source of vitamin a and vitamin d and is a primary commercial source of these vitamins. Food value of oz. 100 g raw has calories 100 protein g fat g calcium 13 mg cholesterol 50 mg niacin mg. ham The rear leg of a hog.