Abstract
This paper aims to verify whether cereal products are a good source of Cu, Mn, Fe, and Zn in the diets of Poles. The study material comprised of 445 cereal products including baked goods, breakfast cereals and groats, pasta, and rice. Products that required culinary treatment (pasta, groats, rice) were boiled in drinking quality water as recommended by the producer. The content of Cu, Mn, Fe, and Zn was determined by using the FAAS method. The average content of microelements in the analyzed products can be represented as Fe (17.9 mg kg−1 ± 10.3) > Zn (12.4 mg kg−1 ± 5.2) > Mn (9.6 mg kg−1 ± 6.7) > Cu (3.9 mg kg−1 ± 2.9). Considering the daily requirement of the analyzed minerals among adult Poles, it was determined that cereal products supply 58% RDA Cu, 61% AI Mn (men)–78% AI Mn (women), 19% RDA Fe (women)–34% RDA Fe (men), and 16% RDA Zn (men)–22% RDA Fe (women). Baked goods account for as much as about 90% of all Cu, Mn, Fe, and Zn consumed as cereal products in a daily diet. Based on the results, it can be concluded that cereal products are the main source of Cu, Mn, Fe, and Zn in the diets of Poles. In connection with low assimilability of minerals, they should not be considered the fundamental source of those microelements in the diets of Poles.
Highlights
According to the current state of knowledge, some microelements are deemed necessary to ensure the correct development and functioning of the human body
The most frequently mentioned were insufficient level of Cu in the diets of children, young adults, and the elderly [10,11,12]; insufficient level of Fe, in particular, in the diets of vegans or vegetarians, people suffering from malabsorption, women with heavy periods, expectant and lactating women, and children [13,14,15]; and insufficient level of Zn in the diets of the elderly and young adults [10, 12]
This paper aims to verify whether cereal products are a good source of Cu, Mn, Fe, and Zn in the diets of Poles
Summary
According to the current state of knowledge, some microelements are deemed necessary to ensure the correct development and functioning of the human body. These include copper (Cu), manganese (Mn), iron (Fe), and zinc (Zn). These elements perform different functions, e.g., they form part of compounds of fundamental significance to metabolic processes, such as enzymes and their activators and hormones. They participate in regulating and immune mechanisms [1, 2]. Analysis of the concentration of microelements in the hair of the elderly
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