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As foods vary by brands and stores, the figures should only be considered estimates, with more exact figures often included on product labels. For precise details about vitamins and mineral contents, the USDA source can be used. [1] To use the tables, click on "show" or "hide" at the far right for each food category.
Dietitians may recommend that minerals are best supplied by ingesting specific foods rich with the chemical element(s) of interest. The elements may be naturally present in the food (e.g., calcium in dairy milk) or added to the food (e.g., orange juice fortified with calcium; iodized salt fortified with iodine).
To address these challenges, providing a variety of nutrient-rich foods at every meal and snack is essential, allowing children to explore and develop their preferences. The concept of "responsive feeding", which involves a reciprocal relationship between the child and the caregiver during meals, is widely recommended.
In the United States, foods poor in micronutrient content and high in food energy make up some 27% of daily calorie intake. [3] One US national survey (National Health and Nutrition Examination Survey 2003-2006) found that persons with high sugar intake consumed fewer micronutrients, especially vitamins A, C, and E, and magnesium.
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Vitamin A in food exists either as preformed retinol – an active form of vitamin A – found in animal liver, dairy and egg products, and some fortified foods, or as provitamin A carotenoids, which are plant pigments digested into vitamin A after consuming carotenoid-rich plant foods, typically in red, orange, or yellow colors. [4]
Chilean cattle is fed with mineral-rich prairie grass and produced generally in small herds in small farms instead of being mass-produced and fattened on corn, as in some other countries. This produces leaner beef, but since it is the fat within the muscle tissue that makes beef tender, it also makes it tougher beef. [ 19 ]
It is known that some species of bats regularly visit mineral or salt licks to increase mineral consumption. However, Voigt et al. demonstrated that both mineral-deficient and healthy bats visit salt licks at the same rate. [23] Therefore, mineral supplementation is unlikely to be the primary reason for geophagia in bats.