Biomaterial Database

Alterations in zinc absorption and salivary sediment zinc after a lacto-ovo-vegetarian diet. 1980

J H Freeland-Graves, and M L Ebangit, and P J Hendrikson

The effect of a lacto-ovo-vegetarian diet on plasma zinc tolerance tests and plasma and saliva zinc levels was measured in 12 nonvegetarian women. A diet meeting the Recommended Dietary Allowances for all nutrients, including zinc, was fed to the subjects for 22 days. Initial zinc status of subjects was determined by zinc analysis of their diet, hair, plasma, and saliva. Plasma response to an oral load of 50 mg Zn was determined in five subjects before and after the dietary period. Zinc levels of salivary sediment, which consisted primarily of epithelial cells, significantly decreased from initial values of 128 to final levels, of 94 microgram/g. No significant differences were found in zinc levels of plasma or whole mixed saliva. Plasma response to initial zinc tolerance tests were inversely correlated (P < 0.05) to dietary protein levels. Significantly increased plasma zinc uptake and areas under zinc tolerance curves were found after consumption of vegetarian diets compared to diets containing meats. The increased plasma response to a zinc load and decrease in salivary sediment zinc after a vegetarian diet indicate that this diet adversely affects zinc status.

UI	MeSH Term	Description	Entries
D007408	Intestinal Absorption	Uptake of substances through the lining of the INTESTINES.	Absorption, Intestinal
D004043	Dietary Fiber	The remnants of plant cell walls that are resistant to digestion by the alimentary enzymes of man. It comprises various polysaccharides and lignins.	Fiber, Dietary,Roughage,Wheat Bran,Bran, Wheat,Brans, Wheat,Dietary Fibers,Fibers, Dietary,Roughages,Wheat Brans
D004044	Dietary Proteins	Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS.	Proteins, Dietary,Dietary Protein,Protein, Dietary
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012463	Saliva	The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin.	Salivas
D014676	Diet, Vegetarian	The dietary practice of completely avoiding meat or fish products in the DIET, consuming VEGETABLES, CEREALS, and NUTS. Some vegetarian diets called lacto-ovo also include milk and egg products.	Lacto-Ovo Vegetarian Diet,Lacto-Vegetarian Diet,Vegetarian Diet,Vegetarianism,Diet, Lacto-Ovo Vegetarian,Diet, Lacto-Vegetarian,Diets, Lacto-Ovo Vegetarian,Diets, Lacto-Vegetarian,Diets, Vegetarian,Lacto Ovo Vegetarian Diet,Lacto Vegetarian Diet,Lacto-Ovo Vegetarian Diets,Lacto-Vegetarian Diets,Vegetarian Diet, Lacto-Ovo,Vegetarian Diets,Vegetarian Diets, Lacto-Ovo
D015032	Zinc	A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.