micronutrients
yes
yes
vitamins
You may be thinking of the various vitamins.
Micronutrients, such as vitamins and minerals, are compounds needed in small amounts to support various physiological functions in the body. These nutrients play vital roles in enzyme function, metabolism, and overall health. They are essential for maintaining proper growth, development, and overall well-being.
Several nutrients are needed in small amounts:potassiumironvitamin diodinesodium
Iron
fluroine
vitamins are required in small amounts by the body.
Fat
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Iodine is a trace mineral that your body uses in small amounts to synthesize thyroid hormones that are necessary for regulating your body's growth, development, metabolism and body temperature. Most iodine in your body is found in the thyroid gland, but some is also found in the blood and muscles.