Vegetarian diets definitions

The risk of iodine deficiency in vegetarians reflects the extent to which iodine-containing foods are excluded from their diets. For example, those who adhere to highly restricted diets are more likely to suffer deficiency than others who consume dairy products, which are generally iodine-rich. Thus, to consider the likely prevalence of iodine deficiency in vegetarians, it is necessary to consider the nature and severity of individual dietary restrictions. However, the scientific and popular literature have adopted an array of variable and sometimes overlapping nomenclature to describe various types of vegetarian diets (Dwyer et al., 1974 Johnston, 2000 Weinsier, 2000). In order to standardize our discussion and enhance comparability between the studies considered below, we have adopted the dietary terms and definitions outfined in Tables 54.1 and 54.2, respectively. 

Definitions are important in discussing vegetarian diets and nutritional adequacy since both of these terms cover a multitude of disparate characteristics. 

Although insect predators and parasitoids are carnivorous by definition, they often also feed on plant-derived foods. This vegetarian side to their diet includes various... 

Without the results from our second study, a definitive conclusicai is not easy. If results of our 1st study are applicable to a range of dietary zinc intakes, a phytate to zinc molar ratio of 10 to 12 is not a hinderance to bioutilization of zinc by humans and the level of intake of zinc becomes a limiting factor in determining adequacy. We know from our analysis of self-chosen diets, and estimation by others, that most people consume diets that are less than 10 in phytate/zinc molar ratio. Vegetarians, particularly those who eat a lot of cereal products, will very likely exceed the value of 10. There is wide variation between individuals and from day to day by each individual. The role of adaptation or response of homestatic control mechanisms require further clarification but it is our feeling at present that humans can consume a wider molar ratio of phytate to zinc than heretofore thought. 

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