Kinesiology 3339A/B Lecture Notes - Lecture 24: Dental Caries, Bile Acid, Action Potential
22 Oct 2018
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Essential minerals: calcium, fluoride, iodine, phosphorus, iron, molybdenum, potassium, zinc, Magnesium: 50-60% in skeleton (related to calcium and phosphorus, most of rest in muscle (component of a large number of enzymes), necessary for muscle contraction, also involved in hormonal function, oxygen metabolism (2,3. Dpg), and glucose metabolism: deficiency is possible for some athletes especially females due to > losses and low intakes (nuts, seafood, milk, yogurt, whole grains, fruit/vegetables [especially green leafy vegetables], need about 350-400 mg/d. Microminerals iron: majority (about 70%) in oxygen transport (hemoglobin, myoglobin, cytochromes, several krebs cycle metalloenzymes); remainder (30%) as tissue ferritins. Need small amounts but need to consume a lot more in order to get what you need. Heme (meats; especially red meat) about 10-35% absorption. Non-heme (plants) about 2-10: absorption increased when plants and meat consumed together (due to unknown muscle protein factor)
