The concentrations of nitrates in total diet samples prepared at 11 places were determined according to the market basket method, and the daily intake of nitrates was estimated based on the analysis results. The mean estimated daily intake of nitrates was 200 mg/man/day (4.0 mg/kg/day) and exceeded the ADI (3.7 mg/kg/day) set by the JECFA by 8%. The principal sources of the nitrates were colored vegetables (7th food group) and other vegetables, seaweeds and mushrooms (8th food group), and the intake from these food groups accounted for more than 80% of the total intake. The reported concentrations of nitrates in individual foods and the estimated daily intake of these foods indicate that the intake of nitrates from spinach accounts for 38% of the ADI, that from Chinese cabbage for 10%, and that from Japanese radish for 20%.
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http://dx.doi.org/10.3358/shokueishi.50.29 | DOI Listing |
J Egypt Natl Canc Inst
January 2025
Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
Background: Colorectal cancer (CRC) is a major public health concern. Animal models play a crucial role in understanding the disease pathology and development of effective treatment strategies. Chemically induced CRC represents a cornerstone in animal model development; however, due to the presence of different animal species with different genetic backgrounds, it becomes mandatory to study the susceptibility of different mice species to CRC induction by different chemical entities such as 1,2-dimethylhydrazine (DMH).
View Article and Find Full Text PDFJ Nutr
January 2025
National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, NHC Key Laboratory of Public Nutrition and Health, Beijing, 100050, China. Electronic address:
The plasma selenoprotein P (SELENOP) concentration leveling out was thought to represent saturation of the functional selenium body pool and an appropriate supply of selenium to all tissues, indicating that the necessary amount of selenium had been supplied. Based on the selenium intake when SELENOP reaches saturation, the estimated average requirement (EAR) of selenium was set as 50 μg/d, and the recommended nutrient intake (RNI) was 60 μg/d for Chinese general population. According a recent study, "lactating Chinese women with the optimal daily selenium intake" was defined, and the adequate intake (AI) of 0‒6 months old infants was set as 15 μg/d, and 20 μg/d was calculated for 7‒12 months old infants.
View Article and Find Full Text PDFReprod Toxicol
January 2025
Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. Electronic address:
Saturated fat has been linked to cardiovascular diseases, leading to an increase in polyunsaturated fat consumption. The aim of the present study was to investigate the effects of three fat sources (coconut oil, lard and soybean oil) on metabolic and reproductive parameters in heterogenic mice. Female Swiss mice (5-6 weeks old; n=9/group) were divided into four experimental groups: control (CC), coconut oil (CO), lard (LA), and soybean oil (SO), and were orally given 0.
View Article and Find Full Text PDFJ Environ Manage
January 2025
Departmemt of Civil Engineering, National Institute of Technology Andhra Pradesh, India. Electronic address:
Microplastics (MPs) are a growing environmental issue because of their widespread prevalence and their long-term effects on ecosystems and human health. Global studies have identified MPs in various aquatic environments, such as lake, rivers, estuaries, wastewater, and oceans. Although most MPs originate from urban surface water sources, the specific intensity, characteristics, and associated risk assessments remain unclear.
View Article and Find Full Text PDFAnimal
December 2024
Department of Ruminant Science, Institute of Animal Science, Agricultural Research Organization, Rishon Lezion 7528809, Israel. Electronic address:
Use of desalinated seawater in arid and semiarid regions for domestic, industrial, and agricultural purposes is on the rise. Consequently, in those regions, drinking water offered to lactating cows has lower salinity and mineral concentrations than in the past. Although water with total dissolved solids (TDSs) of up to 1 000 ppm is considered safe for drinking, lower salinity level may affect rumen physiology, feed and water intake, or milk yield.
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